Easy Statistics

The probability Joe is at work is 49%,. The probability Joe is at home is 25%. What is the probability Joe is neither at work nor at home?

a) 39%
b)74%
c)52%
d) 26%

*I personally think it is a or c. I am just needing some help thanks!

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  1. prob(Joe not at work) = .51
    prob(Joe not at home) = .75

    prob(joe not at work and not at home)
    = (.51)(.75) = .3825
    = 38%

    Don't know how they got 39%

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