Question

three coins are tossed simultaneously 200 times with the above frequencies
now if three coins are simultaneously tossed again compute the probability of 2 heads coming up
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Answer 1

Answer:

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Step-by-step explanation:

1) p=(23+72)/200

    = 95/200

   =13/40

2) p=28/200

     =7/50

3)p=(77+28)/200

   =105/200

    = 21/40

4)p=(28+77+72)/200

   = 177/200