It is estimated 30 % of all adults in United States invest in stocks and that...
It is estimated
30
% of all adults in United States invest in stocks and that
84
% of U.S. adults have investments in fixed income instruments (savings accounts, bonds, etc.). It is also estimated that
26
% of U.S. adults have investments in both stocks and fixed income instruments.
(a) What is the probability that a randomly chosen U.S. adult invests in stocks, given that s/he invests in fixed income instruments? Round your answer to
2
decimal places.
(b) What is the probability that a randomly chosen stock investor also invests in fixed income instruments? Round your answer to
2
decimal places.
Homework Answers
p(stock)=0.30
p(income instrument)=0.84
p(both)=0.26
a)P(Stocks/income)=(0.27)/(0.84)=0.3214
=0.32
b)p(income/stocks)=p(both)/p(stocks)
=0.27/0.30
=0.9
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