An unfair coin with​ Pr[H] = 0.75 is flipped. If the flip results in a​ head, a student is selected at random from a class of six boys and s

Question

An unfair coin with​ Pr[H] = 0.75 is flipped. If the flip results in a​ head, a student is selected at random from a class of six boys and sixteen girls.​ Otherwise, a student from a different class containing five boys and six girls is selected. What is the probability of selecting a​ girl, given the flip resulted in​heads?

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Ivy 1 week 2021-11-19T13:38:17+00:00 1 Answer 0 views 0

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    2021-11-19T13:39:25+00:00

    Answer:

    72.73% probability of selecting a​ girl, given the flip resulted in​heads

    Step-by-step explanation:

    A probability is the number of desired outcomes divided by the number of total outcomes.

    Coin resulted in heads

    Student is selected at random from a class of six boys and sixteen girls.​

    Desired outcomes:

    16 girls, so D = 16

    Total outcomes:

    16+6 = 22, that is, 22 students, so T = 22

    Probability:

    P = \frac{16}{22} = 0.7273

    72.73% probability of selecting a​ girl, given the flip resulted in​heads

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45:7+7-4:2-5:5*4+35:2 =? ( )