Answered: If 80% of the applicants rae able to…

If 80% of the applicants rae able to pss a driver’s proficiency road test, find the mean, variance and standard deviation of the number of people who pass the test in a sample

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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Question

5. If 80% of the applicants rae able to pss a driver’s proficiency road test, find the mean,

variance and standard deviation of the number of people who pass the test in a sample

of 300 applicants.

6. The probability that an entering college student will graduate is 0.6. Determine that out

of 4 students

a. All will graduate

b. Atleast 1 will graduate

7. A telephone operator receives 3 calls per hour. Find the probability that he will receive

a. At most 3 calls

b. Atleast 4 calls

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