Essay Question: 2(e). Assume the event F is that a randomly selected customer is female and the event S is that a randomly selected customer is single. Are events F and S independent events? Use probability information to justify your answer. 

Part I: Multiple Choice Questions. For each of the questions below, please circle the letter corresponding to the one best answer to the question. (4 points each, 60 points total)

A method of assigning probabilities based upon judgment is referred to as the

Refer to Exhibit 1. The percentage of days in which the company sold at least 40 laptops is

Essay Question: 2(b). What is the probability of finding a female customer?  The probability of finding a female customer is [Select1].

Refer to Exhibit 1. The class width of the above distribution is

Essay Question: 3(b). Compute the mean yearly salary. 

Essay Question: 4(a). Comment on the shape of the distribution.  The shape of the distribution is [select1].

Refer to Table 1. What is the cumulative relative frequency of the 2nd class?

What are the two main groups of invertebrate chordates?