# Chapter 4 - Section 4.5 - Union of Events and the Addition Rule - Exercises - Page 161: 4.72

a. P(man or no)=P(man)+P(no)-P(man and no) = $\frac{(74+168+58)}{600}$+$\frac{(124+168)}{600}$-$\frac{(168)}{600}$ = 0.7067 b. P(yes or woman)=$\frac{(74+106)}{600}$+$\frac{(106+124+70)}{600}$-$\frac{(106)}{600}$ =0.6233 c. P(no opinion or yes)=$\frac{(58+70)}{600}$+$\frac{(74+106)}{600}$ =0.5133

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No.

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