1) You may need to use the appropriateappendix tableortechnologyto answer this question.

A group conducted a survey of 13,000 brides and grooms married in the United States and found that the average cost of a wedding is $25,858. Assume that the cost of a wedding is normally distributed with a mean of $25,858and a standard deviation of $5,900.

(a)

What is the probability that a wedding costs less than $20,000? (Round your answer to four decimal places.)

(b)

What is the probability that a wedding costs between $20,000and $32,000? (Round your answer to four decimal places.)

(c)

What is the minimum cost (in dollars) for a wedding to be included among the most expensive 5% of weddings? (Round your answer to the nearest dollar.)

$

2) EventsAandBare mutually exclusive withP(A) =0.36andP(B) =0.24. FindP(B^c).

0.50

0.60

0.62

0.76

3) A survey of a sample of business students resulted in the following information regarding the genders of the individuals and their selected major.

\fEvents A and B are mutually exclusive. Which of the following statements is also true? 0 PM n 3) = P(A) + P(B). O A and B are also independent. 0 PM U 3) = P(A) + 13(3). 0 PM U 3) = P(A)P(B)