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# Statistical trivia..10pts!?

1. If A and B are independent events with P(A) = 0.2 and P(B) = 0.6, thenP(A U B) =

2. A six sided die is tossed 3 times. The probability of observing three ones in a row is

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- holdenLv 41 decade agoFavorite Answer
1. P(AUB) = P(A) + P(B)

2. P(1) = 1/6

P(1) & P(1) & P(1) = P(1) * P(1) *P(1) = 1/216

- openpsychyLv 61 decade ago
1)P(A U B)=.2*.6=.12

2)Probability of observing three ones in arow=(1/6)(1/6)(1/6)=1/216

- BramblyspamLv 71 decade ago
1.

The probability is 0.2+0.6 = 0.8.

2.

(1/6)*(1/6)*(1/6) = (1/216) = 0.004630

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