In a survey of 200 employees of a company regarding their 401(k) investments, the following data were obtained. 119 had investments in stock funds. 99 had investments in bond funds. 65 had investments in money market funds. 47 had investments in stock funds and bond funds. 33 had investments in stock funds and money market funds. 33 had investments in bond funds and money market funds. 21 had investments in stock funds, bond funds, and money market funds. (a) what is the probability that an employee of the company chosen at random had investments in exactly two kinds of investment funds? (enter your answer to three decimal places.) (b) what is the probability that an employee of the company chosen at random had investments in exactly one kind of investment fund? (enter your answer to two decimal places.) (c) what is the probability that an employee of the company chosen at random had no investment in any of the three types of funds? (enter your answer to three decimal places.)

Step-by-step explanation:

total: 200 employees of a company

119 had investments in stock funds

99 had investments in bond funds

65 had investments in money market funds

47 had investments in stock funds and bond funds

33 had investments in stock funds and money market funds

33 had investments in bond funds and money market funds

21 had investments in stock funds, bond funds, and money market funds.

See Venn diagram attached

(a) What is the probability that an employee of the company chosen at random had investments in exactly two kinds of investment funds? (Enter your answer to three decimal places.)

Exactly 2 kinds: 26+12+12 = 50

50/200 = 0.25

(b) What is the probability that an employee of the company chosen at random had investments in exactly one kind of investment fund? (Enter your answer to two decimal places.)

Exactly one kind: 60+40+20 = 120

120/200 = 0.60

(c) What is the probability that an employee of the company chosen at random had no investment in any of the three types of funds? (Enter your answer to three decimal places.)

60+40+20+26+12+12+21=191

200-191 = 9

9/200 = 0.045

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify