Five identical

Five identical coins are tossed. What is the probability of more than one head?

Correct answer:

p =  0.8125

Step-by-step explanation:

n=5 q=21=0.5  p0=(0n)q0(1q)n0=(05)0.50(10.5)50=10.500.55=3210.0313 p1=(1n)q1(1q)n1=(15)0.51(10.5)51=50.510.54=3250.1563  p=1p0p1=1321325=1613=0.8125

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