1.00   (a) Determine the probability that a randomly selected executive has a salary greater than or equal to k70,000 but less than k100,000. (b) Determine the probability that a randomly selected executive has a salary that is either less than k60,000 or greater than or equal to k90,000. (c) Are the events A through F mutually exclusive?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 21PPS
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ii). The following table shows the relative frequency of executive salaries a
particular organization.

Event

Salary Range

Relative Frequency

A

Under k60,000

0.09

B

K60,000-under k70,000

0.21

C

K70,000-under k80,000

0.28

D

K80,000-under K90,000

0.15

E

K90,000- under K100,000

0.23

F

K100,000 or more

0.04

Total

1.00

 

(a) Determine the probability that a randomly selected executive has a salary
greater than or equal to k70,000 but less than k100,000.
(b) Determine the probability that a randomly selected executive has a salary
that is either less than k60,000 or greater than or equal to k90,000.

(c) Are the events A through F mutually exclusive?

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