1.

Calculate the desired empirical probabilities (rounded to 3 significant digits) based on the airline passenger satisfaction data, summarized in the following contingency table:

	Satisfied	Not Satisfied	TOTAL
Compensated	74	6	80
Not Compensated	12	308	320
TOTAL	86	314	400

a.P(Compensated|Satisfied)

Round to 3 significant digits

b.P(Compensated|Not Satisfied)

Round to 3 significant digits

2.

A recruiting agent stated that, on average, 3.2 applicants fail to show up for their interview every week. What is the probability that exactly 7 applicants will not show up for their interview next week? Analyze the given scenario and complete the following:

a.Determine which probability distribution should be used to model the scenario.

Hypergeometric

Geometric

Poisson

b.Calculate the probability of the indicated event. P(x)=()=

Round to 3 significant digits

c.Determine the expected value and variance of the random variable. E(X)=()=

Variance==

Round to 3 significant digits

3.

The proportion of employees in each department at Attrev Ltd is displayed in the chart below: