STAT 100 Midterm: STAT100 ALL-SECTIONS SPRING1997 0000 MID EXAM 1

• School: University of Maryland
• Department: Statistics and Probability
• Course: STAT 100
• Professor: All

Document Summary

You may use calculators, but not books or notes. Di erent parts of a problem have equal weight unless otherwise indicated. Do not spend too much time on any one problem. Put a box around the nal answer to a question. (a) (15 pts. ) Given is the sample data: 2, 4, 5, 5, 1. 1. sample mean, sample standard deviation, and median. (b) (5 pts. ) Suppose that data x1, x2, . xn has sample standard deviation equal to 6. What is the sample standard deviation of the data 3x1, 3x2, . 3xn : suppose a, b, and c are events such that p (a) = . 5, p (b) = . 8, p (c) = . 7, and. Why or why not: fifty high school students enter a random drawing for two prizes. The rst person drawn will win , and the second person drawn will win .