A company has 10 delivery trucks, 6 of which are due in for an inspection. Suppose 3 of these 10 trucks are selected at random. a) What is the probability that at least 2 of the selected trucks will be due for inspection? b) What is the expected value of the number of selected trucks that will be due for inspection, rounded to two decimal places?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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A company has 10 delivery trucks, 6 of which are due in for an inspection. Suppose 3 of these 10 trucks are selected at random.

a) What is the probability that at least 2 of the selected trucks will be due for inspection?

b) What is the expected value of the number of selected trucks that will be due for inspection, rounded to two decimal places?

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