Stanley, a recent high school student, took the SAT exam in 2011 and got a 600 in all three components (Critical Reading, Math, and Writing). He was interested in how well he did compared to the rest of his peers. Table 2.25 shows the summary statistics for all students in 2011.

Table 2.25

(a) Calculate z-scores for all three of Stanley€™s scores using the summary statistics in Table 2.25.
(b) Which of Stanley€™s three scores is the most unusual relative to his peers? Which is the least unusual?
(c) In which component did Stanley perform best relative to his peers?

Transcribed Image Text:

Mean Standard Deviation Component Critical Reading Math Writing 497 514 489 114 117 113