A driving test examiner takes 8 driving tests per day. The probability that a candidate passes their driving test is 0.8 a) Find the expectation, variance, and standard deviation for the number of candidates passing their test on a typical day. b) Find the probability that 7 students pass their test on a given day. c) Find the probability that nobody fails their test on a given day. d) Find the probability that 5 or fewer students pass their test on a given day.

A driving test examiner takes 8 driving tests per day. The probability that a candidate passes their driving test is 0.8 a) Find the expectation, variance, and standard deviation for the number of candidates passing their test on a typical day. b) Find the probability that 7 students pass their test on a given day. c) Find the probability that nobody fails their test on a given day. d) Find the probability that 5 or fewer students pass their test on a given day.

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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