(Answered) : Week 3 Assignment 60

Question Description

Week 3 Assignment

Question 1

Seventy percent of the students applying to a university are accepted. Using the binomial probability tables or Excel, what is the probability that among the next 12 applicants:

1. At least 6 will be accepted?
2. Exactly 10 will be accepted?
3. Exactly 8 will be rejected?
4. Seven or more will be accepted?
5. Determine the expected number of acceptances.
6. Compute the standard deviation. Hint from Dr. Klotz: There are formulas you need on page 245 or check out 5.4 in Notations and Symbols for this week. Remember that standard deviation is the square root of the variance.

Question 2

Scores on a recent national statistics exam