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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  • holden
    Lv 4
    1 decade ago
    Favorite 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

  • 1 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

  • 1 decade ago

    1.

    The probability is 0.2+0.6 = 0.8.

    2.

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

  • 1 decade ago

    1. P(AUB)=P(A)+P(B)-P(A intersect B)

    =0.2+0.6-(0.2)(0.6)

    2. (1/6)^3=1/216

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  • 1 decade ago

    2. (1/216)

  • 1 decade ago

    1. 0.2*0.4+0.6*0.8+0.6*0.2=.68

    2. 1/216

  • 1 decade ago

    Trivia? Is this what you kids call homework nowadays?

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