Kathryn has classes 4 days a week. She attends the class 4 days a week 60% of the time, 3 days 20% of the time, 2 days 14% of the time, 1 day 5% of the time and no days 1% of the time.
Kathryn has classes 4 days a week. She attends the class 4 days a week 60% of the time, 3 days 20% of the time, 2 days 14% of the time, 1 day 5% of the time and no days 1% of the time.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Kathryn has classes 4 days a week. She attends the class 4 days a week 60% of the time, 3 days 20% of the time, 2 days 14% of the time, 1 day 5% of the time and no days 1% of the time.
a. Find the probability that Kathryn attends her class 2 to 3 times a week.
b. Find the probability that Kathryn attends her class at least 2 times a week.
c. What is the mean , variance, and standard deviation.
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