Question

1.

In a particular city, of the students who drive to campus, 23% drive luxury cars and 48% have comprehensive auto insurance. Suppose having comprehensive auto insurance and driving a luxury car are independent. What is the probability that a student who drives to campus in the city drives a luxury car or has comprehensive auto insurance?

2.

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	75	5	80
Not Compensated	18	302	320
TOTAL	93	307	400

a.The probability that the 16th customer surveyed was offered compensation, if the first 15 customers surveyed were not.

Round to 3 significant digits
b. The probability that the 15th customer rated their satisfaction as negative, if the first 14 customers surveyed had also rated their satisfaction as negative.

Answer 1