If Lisa scored a 25 on a standardized test with a mean of 20 and a standard deviation of 5, approximately what percent of the students who took the test had scores lower than hers?
a. 95
b. 85
c. 75
d. 65
Question 2
You have two sets of scores, which are as follows:
Set A: Mean40 Median40 Standard deviation4
Set B: Mean40 Median41 Standard deviation6
Of the following, which is the most accurate statement?
a. The students' performance for both sets was equal since the means are the same.
b. The scores in Set B tend to be spread out more than the scores in Set A.
c. The students in Set B actually performed better since the standard deviation is higher than in Set A.
d. The students in Set B actually performed better since both the median and standard deviation are higher than they are in Set A.
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