Consider the distribution of mathematics SAT scores of stude

Consider the distribution of mathematics SAT scores of students in honors calculus at a liberal arts college. What would you expect the shape and variation of the distribution to be?

A. Symmetric with little variation

B. Symmetric with large variation

C. Skewed right with large variation

D. Skewed left with little variation

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The mathematics SAT scores of the seven students in a mathematics seminar are 533, 553, 578, 586, 619, 626, and 633. Suppose that the student with the score 533 drops the seminar and is replaced by a student with a score of 585. What will happen to the mean and the median scores of the class?

A. Neither the mean nor the median will change.

B. Both the median and the mean will increase.

C. The median will increase; the mean will be unchanged.

D. The mean will increase; the median will be unchanged.

Solution

1) Answer : A. Symmetric with little variation

2) Answer : D. The mean will increase; the median will be unchanged.