2650 Tinspire App Quiz

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2650 Tinspire App Quiz - Quiz

Using the document Bivariate Data App Pages as a reference, answer the following questions.
Dataset 135 is used for some questions - which you can load through the App, but a sample is also below.

Questions and Answers
  • 1. 

    When you are given a data set in a SAC, which app should you use put it into your calculator

    Correct Answer
    bivarenterdata
    Explanation
    In a Statistical Analysis Calculator (SAC), the "bivarenterdata" app should be used to input a data set into the calculator. This app is specifically designed for handling bivariate data, which involves two variables. By using this app, users can easily enter and analyze the given data set in the calculator, allowing for various statistical calculations and interpretations to be made.

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  • 2. 

    Immediately after you have put your data into your calculator, which App do you need to run to refresh the values on the other pages?

    Correct Answer
    bivarlinregrssn
    Explanation
    After inputting data into the calculator, the "bivarlinregrssn" app needs to be run to refresh the values on the other pages.

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  • 3. 

    Which App should I run in order to populate the pages relating to Transformations?

    Correct Answer
    bivartransfrmtn
    Explanation
    The correct answer is "bivartransfrmtn" because it is the specific app that needs to be run in order to populate the pages relating to transformations. This app likely contains the necessary tools and functions for performing bivariate transformations, which are a type of transformation involving two variables.

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  • 4. 

    It is always good practice to check the values you have entered. On which page could I expect to check the values of the data in a table format?

    Correct Answer
    page 1.3, 1.3
    Explanation
    The values of the data in a table format can be checked on page 1.3. This page likely contains a table where the values are displayed and can be reviewed. It is important to always verify the entered values to ensure accuracy and avoid any potential errors.

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  • 5. 

    I need to look at the scatter plot of the bivariate data to determine which quadrant it might fit into. Which page would I go to?

    Correct Answer
    page 1.4, 1.4
    Explanation
    To determine which quadrant the bivariate data might fit into, one would need to refer to the scatter plot. The scatter plot is a graphical representation of the data points on a coordinate plane. By examining the placement of the points on the scatter plot, one can determine in which quadrant the data falls. Therefore, to find the scatter plot and determine the quadrant, the person would go to page 1.4.

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  • 6. 

    I want a full list of details relating to the Linear Regression equation, form and strength, correlation coefficient and coefficient of deterimation. Which page will offer me a summary of these details?

    Correct Answer
    page 1.6, 1.6
    Explanation
    The full list of details relating to the Linear Regression equation, form and strength, correlation coefficient, and coefficient of determination can be found on page 1.6. This page offers a summary of these details.

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  • 7. 

    The only way to truly tell if a set of data is linear is to look at its residual plot. Which page would I find the residual plot for the least squares regression line?

    Correct Answer
    page 1.9, 1.9
    Explanation
    The residual plot for the least squares regression line can be found on page 1.9. By examining the residual plot, one can determine if the data follows a linear pattern.

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  • 8. 

    I have just run the transformation App to find the best transformation for the data set. Which page would give the equation for the line for the best transformation?

    Correct Answer
    page 1.8, 1.8
    Explanation
    The equation for the line for the best transformation can be found on page 1.8.

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  • 9. 

    While a transformation may be determined to be the 'best' transformation because of its coefficient of determination, thats not enough to prove it will be accurate. You still need to look at the residual plot to see that the data is linear AFTER it has been transformed. Where would I find the residual plot for an x squared transformation?

    Correct Answer
    page 1.16, 1.16
    Explanation
    The residual plot for an x squared transformation can be found on page 1.16 of the given source.

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  • 10. 

    While a transformation may be determined to be the 'best' transformation because of its coefficient of determination, thats not enough to prove it will be accurate. You still need to look at the residual plot to see that the data is linear AFTER it has been transformed. Where would I find the residual plot for a y squared transformation?

    Correct Answer
    page 1.25, 1.25
  • 11. 

    While a transformation may be determined to be the 'best' transformation because of its coefficient of determination, thats not enough to prove it will be accurate. You still need to look at the residual plot to see that the data is linear AFTER it has been transformed. Where would I find the residual plot for a log(x) transformation?

    Correct Answer
    page 1.19, 1.19
  • 12. 

    While a transformation may be determined to be the 'best' transformation because of its coefficient of determination, thats not enough to prove it will be accurate. You still need to look at the residual plot to see that the data is linear AFTER it has been transformed. Where would I find the residual plot for a log(y) transformation?

    Correct Answer
    page 1.28, 1.28
  • 13. 

    While a transformation may be determined to be the 'best' transformation because of its coefficient of determination, thats not enough to prove it will be accurate. You still need to look at the residual plot to see that the data is linear AFTER it has been transformed. Where would I find the residual plot for a 1/x transformation?

    Correct Answer
    page 1.22, 1.22
    Explanation
    The residual plot for a 1/x transformation can be found on page 1.22, 1.22.

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  • 14. 

    While a transformation may be determined to be the 'best' transformation because of its coefficient of determination, thats not enough to prove it will be accurate. You still need to look at the residual plot to see that the data is linear AFTER it has been transformed. Where would I find the residual plot for a 1/y transformation?

    Correct Answer
    page 1.31, 1.31
  • 15. 

    Sometimes we are asked for the equation for a transformation that is NOT the best transformation. Which page will offer me a summary of all the values for a & b transformations in order to create an equation from quadrant 1 transformations?

    Correct Answer
    page 1.11, 1.11
    Explanation
    The explanation for the given answer is that page 1.11 provides a summary of all the values for a & b transformations in order to create an equation from quadrant 1 transformations. Therefore, it is the page that will offer the desired information.

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  • 16. 

    Sometimes we are asked for the equation for a transformation that is NOT the best transformation. Which page will offer me a summary of all the values for a & b transformations in order to create an equation from quadrant 2 transformations?

    Correct Answer
    page 1.12, 1.12
    Explanation
    The values for a and b transformations in quadrant 2 can be found on page 1.12. The question is asking for a summary of all these values, which can also be found on page 1.12.

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  • 17. 

    Sometimes we are asked for the equation for a transformation that is NOT the best transformation. Which page will offer me a summary of all the values for a & b transformations in order to create an equation from quadrant 3 transformations?

    Correct Answer
    page 1.13, 1.13
    Explanation
    The page 1.13, 1.13 will offer a summary of all the values for a & b transformations in order to create an equation from quadrant 3 transformations.

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  • 18. 

    Sometimes we are asked for the equation for a transformation that is NOT the best transformation. Which page will offer me a summary of all the values for a & b transformations in order to create an equation from quadrant 4 transformations?

    Correct Answer
    page 1.14, 1.14
    Explanation
    The values for a & b transformations in order to create an equation from quadrant 4 transformations can be found on page 1.14, 1.14.

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  • 19. 

    I have a table of values in an exercise from the book. It is asking me to populate the table with log, squared and reciprocal values. Which App will help me to find all the values in one hit?

    Correct Answer
    bivartranstable
    Explanation
    The correct answer is "bivartranstable". This app is likely to help in populating the table with log, squared, and reciprocal values in one go. It probably provides a function or feature that allows for easy calculation and transformation of values, making it convenient to fill the table with the desired values efficiently.

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  • 20. 

    If x is 70, what is log(x)? (2 decimal places)

    Correct Answer
    1.85
    Explanation
    The value of log(x) is the exponent to which the base (in this case, 10) must be raised to obtain the value x. In this case, if x is 70, then log(70) is approximately 1.85.

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  • 21. 

    If x is 22, what is the reciprocal of x? (3 decimal places)

    Correct Answer
    0.045
    Explanation
    The reciprocal of a number is obtained by taking the reciprocal of the number itself. In this case, the reciprocal of 22 is 1/22, which is equal to 0.045 when rounded to three decimal places.

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  • 22. 

    If x is 15, what is the square of x?

    Correct Answer
    225
    Explanation
    The square of a number is obtained by multiplying the number by itself. In this case, x is given as 15. So, the square of 15 is calculated by multiplying 15 by itself, which equals 225.

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  • 23. 

    If y is 10, what is the reciprocal of y? (1 decimal place)

    Correct Answer
    0.1
    Explanation
    The reciprocal of a number is obtained by dividing 1 by that number. In this case, the number y is given as 10. So, the reciprocal of 10 would be 1/10, which can be written as 0.1.

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  • 24. 

    If y is 30, what is the log of y? (2 decimal places)

    Correct Answer
    1.48
    Explanation
    The log of a number is the exponent to which a base must be raised to obtain that number. In this case, if y is 30, the log of y would be the exponent to which a base must be raised to obtain 30. Therefore, the log of 30 is 1.48 (rounded to 2 decimal places).

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  • 25. 

    If y is 22, what is y squared?

    Correct Answer
    484
    Explanation
    When y is 22, y squared is calculated by multiplying 22 by itself. So, 22 squared is equal to 484.

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  • 26. 

    Using the Data Set 135 :The residual plot for the x squared transformation indicates that :

    • A.

      The transformation is non-linear

    • B.

      The transformation is linear

    • C.

      The transformation is suitable for accurate interpolation

    Correct Answer
    A. The transformation is non-linear
    Explanation
    Page 1.16 - zoom the data and see that it has a pattern. That makes the transformation non linear.

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  • 27. 

    Using the Data Set 135 : The residual plot for the 1/x transformation indicates that :

    • A.

      The transformation is non-linear

    • B.

      The transformation is linear

    • C.

      The transformation is suitable for accurate interpolation

    Correct Answer(s)
    B. The transformation is linear
    C. The transformation is suitable for accurate interpolation
    Explanation
    Page 1.22 and see the residual is random, meaning the transformation is linear, and suitable for predictions within the data set.

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  • 28. 

    Using the Dataset 135:The residual plot for the log(y) transformation indicates that :

    • A.

      The transformation is non-linear

    • B.

      The transformation is linear

    • C.

      The transformation is suitable for accurate interpolation

    Correct Answer
    A. The transformation is non-linear
    Explanation
    Page 1.28 has the residual plot for the log y transformations - showing a pattern. This means the transformation did not linearise the data.

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  • 29. 

    Using the Dataset 135:The residual plot for the y squared transformation indicates that :

    • A.

      The transformation is non-linear

    • B.

      The transformation is linear

    • C.

      The transformation is suitable for accurate interpolation

    Correct Answer
    A. The transformation is non-linear
    Explanation
    Page 1.25 shows the residual plot for the y squared transformation - and it has a pattern. This means the transformation hasn't linearized.

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  • 30. 

    Using the Dataset 135:The residual plot for the linear regression indicates that :

    • A.

      The original data is non linear

    • B.

      The transformation is linear

    • C.

      The transformation is suitable for accurate interpolation

    • D.

      The linear regression is in quadrant 3 or 4

    • E.

      The linear regression is in quadrant 1 or 2

    Correct Answer(s)
    A. The original data is non linear
    D. The linear regression is in quadrant 3 or 4
    Explanation
    Page 1.9 shows the residual plot for the linear regression. Because it is a bowl, we know it can only be in quadrant 3 or 4. Looking at page 1.4, you can see it is in quadrant 3, and the equation for the line tells us that the slope is negative - that's quadrant 3 as well.

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  • 31. 

    I see a residual plot for a linear regression line. It is shaped like a hill. This means

    • A.

      The residual plot is non-linear

    • B.

      The transformation is linear

    • C.

      A transformation may linearise my data

    • D.

      The linear regression is in quadrant 3 or 4

    • E.

      The linear regression is in quadrant 1 or 2

    Correct Answer(s)
    C. A transformation may linearise my data
    E. The linear regression is in quadrant 1 or 2
    Explanation
    The residual plot shaped like a hill suggests that the relationship between the variables is not linear. However, it is possible that a transformation of the data could make the relationship linear. Additionally, the fact that the linear regression is in quadrant 1 or 2 indicates that the relationship is positive.

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  • 32. 

    The residual plot for a transformation is random. This tells me :

    • A.

      The transformation will be suitable to predict interpolated values

    • B.

      The transformation has linearised the data

    • C.

      The original data is linear

    • D.

      The linear regression is in quadrant 3 or 4

    • E.

      The linear regression is in quadrant 1 or 2

    Correct Answer(s)
    A. The transformation will be suitable to predict interpolated values
    B. The transformation has linearised the data
    Explanation
    The statement "The transformation will be suitable to predict interpolated values" is correct because a random residual plot indicates that the transformed data is well-behaved and can be used to predict values within the range of the data. The statement "The transformation has linearized the data" is also correct because a random residual plot suggests that the transformation has reduced any non-linear patterns in the data, making it more linear.

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  • 33. 

    The residual plot for a transformation is a bowl shape. This tells me :

    • A.

      The transformation will be unsuitable to predict interpolated values

    • B.

      The transformation has linearised the data

    • C.

      The original data is linear

    • D.

      The linear regression is in quadrant 3 or 4

    • E.

      The linear regression is in quadrant 1 or 2

    Correct Answer
    A. The transformation will be unsuitable to predict interpolated values
    Explanation
    The residual plot for a transformation that has a bowl shape indicates that the transformation will be unsuitable to predict interpolated values. This is because a bowl-shaped residual plot suggests that the relationship between the predictor and response variables is not linear, and therefore, using this transformation to predict values within the range of the data may not be accurate or reliable.

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  • 34. 

    I am looking at a residual plot for transformation. It is shaped like a hill. This tells me :

    • A.

      The transformation is linear

    • B.

      The transformation is in quadrant 1 or 2

    • C.

      The original data is linear

    • D.

      The linear regression is in quadrant 1 or 2

    • E.

      It only tells me the transformation didn't linearse the data

    Correct Answer
    E. It only tells me the transformation didn't linearse the data
    Explanation
    The residual plot shaped like a hill indicates that the transformation did not linearize the data. This means that the relationship between the variables is not linear and cannot be adequately represented by a straight line. The other statements, such as the transformation being linear or in quadrant 1 or 2, or the original data being linear, cannot be inferred from the given information about the residual plot.

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  • 35. 

    I have a table of values in an exercise from the book. It is asking me to populate the table with log, squared and reciprocal values. After running the app, which page would give me the table of values?

    Correct Answer
    Page 1.10, 1.10
  • 36. 
    You have found the generic equation for the best transformation is : What is the value of the dependent variable when the independent variable is 3. (1 decimal place) - ProProfs

    You have found the generic equation for the best transformation is : What is the value of the dependent variable when the independent variable is 3. (1 decimal place)

    Correct Answer
    40.1
  • 37. 
    You have found the generic equation for the best transformation is : What is the value of the independent variable when the dependent variable is 700. (1 decimal place) - ProProfs

    You have found the generic equation for the best transformation is : What is the value of the independent variable when the dependent variable is 700. (1 decimal place)

    Correct Answer
    40.1

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  • Current Version
  • Mar 19, 2023
    Quiz Edited by
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    Quiz Created by
    Anthony Nunan

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