Pre-assessment for our Data Analysis Unit.

Questions and Answers

- 1.
### Some fourth grade students were asked about their favorite ice cream flavors. The information was used to create this bar graph. Use this bar graph to answer the questions. Using the data in this bar graph, find the

__range__:Explanation

The range is the difference between the highest and lowest values in a set of data. In this case, the highest value on the bar graph is 20 and the lowest value is 10. Therefore, the range is 20 - 10 = 10.Rate this question:

- 2.
### Some fourth grade students were asked about their favorite ice cream flavors. The information was used to create this bar graph. Use this bar graph to answer the questions. Using the data in this bar graph, find the

__mode__: - 3.
### Some fourth grade students were asked about their favorite ice cream flavors. The information was used to create this bar graph. Use this bar graph to answer the questions. Using the data in this bar graph, find the

__mean__:Explanation

The mean is calculated by finding the average of all the values. In this case, we can see that there is only one value given, which is 7. Therefore, the mean is simply 7.Rate this question:

- 4.
### Some fourth grade students were asked about their favorite ice cream flavors. The information was used to create this bar graph. Use this bar graph to answer the questions. Using the data in this bar graph, find the

__median__:Explanation

To find the median, we need to arrange the numbers in ascending order. Looking at the bar graph, we can see that the number 5 appears once. Therefore, it is the middle value when the numbers are arranged in ascending order. Hence, the median is 5.Rate this question:

- 5.
### What day had the highest temperature?

Explanation

The correct answer is Tuesday.Rate this question:

- 6.
### What was the temperature on the coolest day?

Explanation

The answer options all provide the same temperature value of 25 degrees Fahrenheit.Rate this question:

- 7.
### What is the difference in temperature from Tuesday to Saturday?

Explanation

The difference in temperature from Tuesday to Saturday is 15 degrees Fahrenheit.Rate this question:

- 8.
### What fraction of people chose

__sausage__?Explanation

The correct answer is one quarter, one fourth, 1/4, 1\4. These are all different ways of representing the same fraction, which means that out of the total number of people, one quarter or one fourth or 1/4 or 1\4 of them chose sausage.Rate this question:

- 9.
### What fraction of people chose

__pepperoni__?Explanation

The correct answer is "one half," "half," "1/2," and "1\2." These are all different ways of representing the fraction 1/2, which means that half of the people chose pepperoni.Rate this question:

- 10.
### What fraction of people chose

__ham__?Explanation

The fraction "one eighth" represents 1 out of 8 equal parts. It means that out of the total number of people, only one part or one eighth of them chose ham. Similarly, "one eight" is another way of expressing the same fraction. "1/8" and "1\8" are both notations for the fraction one eighth. "Eighth" is a word that represents the fraction 1/8.Rate this question:

- 11.
### Use the pictograph below to answer the questions. How many students voted for

__hamsters__?Explanation

The pictograph shows that there are 6 pictures of hamsters, each representing one student. Therefore, the correct answer is 6 students voted for hamsters.Rate this question:

- 12.
### Use the pictograph below to answer the questions. How

__many more__students voted for dogs than guinea pigs?Explanation

The pictograph shows that there are 4 students who voted for dogs and none who voted for guinea pigs. Therefore, the difference between the number of students who voted for dogs and guinea pigs is 4.Rate this question:

- 13.
### Use the pictograph below to answer the questions. How many

__total__students voted?Explanation

The answer is 28,28 students because the pictograph shows that each picture represents one student. There are 28 pictures in total, so that means 28 students voted.Rate this question:

- 14.
**Using the data in this line plot, find the**__range__: - 15.
**Using the data in this line plot, find the**__mode__: - 16.
**Using the data in this line plot, find the**__mean__:Explanation

The mean is calculated by finding the average of all the numbers in the dataset. In this case, the numbers are 2.3, 2.333333, 2.33333333, 2.33333, 2.3333, 2.333, 2.33, and 2. Adding all these numbers together and dividing by 8 (the total number of numbers) gives us a mean of approximately 2.333.Rate this question:

- 17.
**Using the data in this line plot, find the**__median__:

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