Probability 80785

We roll the dice and then toss the coin as many times as the number that came up on the dice. What is the probability that the coin lands head at least once?

Correct answer:

p =  0.8359

Step-by-step explanation:

p0=1/2=21=0.5  p1=p0=21=0.5 p2=1p02=1212=43=0.75 p3=1p03=1213=87=0.875 p4=1p04=1214=1615=0.9375 p5=1p05=1215=32310.9688 p6=1p06=1216=64630.9844  p=61 (p1+p2+p3+p4+p5+p6)=61 (0.5+0.75+0.875+0.9375+0.9688+0.9844)=128107=0.8359

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