Your company is hoping to fill a key technical position and has advertised in hopes of obtaining qualified applicants. Because of the demanding qualifications, the pool of qualified people is limited and Table 7.6.3 shows your subjective probabilities for each outcome.
a. Find the probability of obtaining at least one applicant.
b. Find the probability of obtaining two or more applicants.
c. Find the mean number of applicants.
d. Find the standard deviation of the number of applicants and write a sentence interpreting its meaning.