Maricella has collected her thesis data that examines differences in PSAT Math achievement in Latino boys and girls. However, upon a second look at the graphs of her raw scores, it appears that the boys scores are more normally distributed and the girls scores are somewhat more bunched together around the mean. Given this information, what can you conclude regarding the data set?
A) The standard deviation is likely smaller for girls.
B) The girls' distribution is likely unimodal.
C) The girls' mean score is more representative of the data.
D) The girls' median is higher than the boys' median.

Question

Quizplus · Accepted Answer

A smaller standard deviation means that the data is more tightly clustered around the mean, which is what is observed in the girls' distribution.

Maricella Has Collected Her Thesis Data That Examines Differences in PSAT