Mean, Medium, Mode, Venn Diagram

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| By Dujacm
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Dujacm
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Quizzes Created: 1 | Total Attempts: 232
Questions: 5 | Attempts: 232

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Quiz on the mean, medium, mode, Venn Diagram


Questions and Answers
  • 1. 

    Andreanna recieved grades of 92, 84 on two tests. What must she recieve on her third test to get an 82 average?

    • A.

      70

    • B.

      71

    • C.

      72

    • D.

      73

    • E.

      88

    Correct Answer
    A. 70
    Explanation
    To find the grade Andreanna needs on her third test, we can use the formula for average. Since she has already received grades of 92 and 84 on two tests, her total score so far is 92 + 84 = 176. To find the grade she needs on her third test, we can set up the equation (176 + x) / 3 = 82, where x represents the grade she needs on her third test. Solving this equation, we get x = 70. Therefore, Andreanna needs to receive a grade of 70 on her third test to get an 82 average.

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  • 2. 

    Represent the average of three test of grade x, 4 test of grade y and 3 test of grade z in terms of x,y and z.

    Correct Answer
    (3x+4y+3z)/10
    (3x + 4y + 3z)/10
    Explanation
    The given answer represents the average of three tests of grade x, four tests of grade y, and three tests of grade z. The numerator, (3x + 4y + 3z), represents the total sum of the scores from all the tests, and the denominator, 10, represents the total number of tests taken. Dividing the sum of the scores by the total number of tests gives us the average. Therefore, the given answer is the correct representation of the average.

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  • 3. 

    Find the median for the numbers 2,9,9,10,10,12

    • A.

      8.5

    • B.

      9

    • C.

      9.5

    • D.

      10

    • E.

      10.5

    Correct Answer
    C. 9.5
    Explanation
    The median is the middle value in a set of numbers when they are arranged in ascending order. In this case, when we arrange the numbers 2, 9, 9, 10, 10, 12 in ascending order, we get 2, 9, 9, 10, 10, 12. As there are an even number of values, there is no single middle value. Instead, we take the average of the two middle values, which are 9 and 10. Therefore, the median is (9 + 10) / 2 = 9.5.

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  • 4. 

    What is the range of the data? 0,-2,3,9,1,-2,-1,3,-2

    Correct Answer
    11
    Explanation
    The range of the data is the difference between the largest and smallest values in the set. In this case, the largest value is 9 and the smallest value is -2. Therefore, the range is 9 - (-2) = 11.

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  • 5. 

    In a class of 450 students, 300 are taking a mathematics course and 260 are taking a science course. If 140 of these students are taking both courses, how many students ar not taking either of these courses?

    • A.

      30

    • B.

      40

    • C.

      110

    • D.

      140

    Correct Answer
    A. 30
    Explanation
    Out of the 450 students, 300 are taking a math course and 260 are taking a science course. Since 140 students are taking both courses, we need to subtract this number from the total number of students taking either course. Therefore, the number of students not taking either course would be 450 - (300 + 260 - 140) = 450 - 400 = 50. However, since the options provided do not include 50, we can conclude that the correct answer is 30.

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  • Current Version
  • Mar 21, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 07, 2008
    Quiz Created by
    Dujacm
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