Syllabus for STAT 255 Michelle Amanda Edwards (P)

The percent of science students (other than students in Mathematics and Statistics) who are doing a minor in statistics is 20%. If 300 students are selected what is the approximate probability that a) more than 150 are taking a minor in statistics b) between 40 and 70 are taking a minor in statistics c) exactly 50 are taking a minor in statistics. 

One term, about 700 Statistics 2 students at the University of California, Berkeley, were asked how many college mathematics courses they had taken, other than Statistics 2. The average number of courses was about 1.1; the SD was about 1.5. Would the histogram for the data look like (i), (ii) or (iii)?

(i)

(ii)

(iii) 

The test scores in Jerry's online AP Statistics course and online AP U.S. History course can be approximated using the normal curve. Jerry is taking both online AP Statistics and online AP U.S. History.

He scored a 95 on an AP Statistics test where the mean score was 84 with a standard deviation of 4.5 He then scored a 90 on an AP U.S. History test with a mean score of 75 and a standard deviation of 8.2 on which test did he perform better relative to his peers. Explain your answer and show your work for full credit. (6 points)