The lists above indicate the tests scores, in increasing order, for two of Mr. Pearlman's classes, each of which has 6 students. Which of the following correctly compares the standard deviation of the scores for each class?
A. The standard deviation of the scores in Class A is smaller.
B. The standard deviation of the scores in Class B is smaller.
C. The standard deviations of the scores in Class A and Class B are equal.
D. The relationship cannot be determined from the information given.
Answer:B
The lists above indicate the tests scores, in increasing order, for two of Mr. Pearlman's classes, each of which has 6 students. Which of the following correctly compares the standard deviation of the scores for each class?
A. The standard deviation of the scores in Class A is smaller. B. The standard deviation of the scores in Class B is smaller. C. The standard deviations of the scores in Class A and Class B are equal. D. The relationship cannot be determined from the information given.
Explanation: B