Assume that Google, Inc. hires employees on the different business days of the week (Monday through Friday) with equal likelihood.

a.If two different employees are randomly selected, what is the probability that they were both hired on a Monday?

b.If two different employees are randomly selected, what is the probability that they were both hired on the same day of the week?

c.What is the probability that 10 people in the same department were all hired on the same day of the week? Is such an event unlikely?

In Exercises 23—26, use these results from the “1-Panel THC” testfor marijuana use, which is provided by the company Drug Test Success: Among 143 subjects with positive test results, there are 24 false positive results; among 157 negative results, there are 3 false negative results. (Hint: Construct a table similar to Table 4-1, which is included with the Chapter Problem.)