Question

We toss 3 coins 100,000 times. How many times do we expect to see "Exactly 1 Head" appearing?

Answer 1

you will see it only once

Answer 2

When 3 fair coins are tossed, the probability of exactly one head appearing is found from:

`P(1\ head)=3C1*((1)/(2))^(3)=(3)/(8)`
Therefore in 100,000 trials we would expect to see exactly one head

`100,000*(3)/(8)=37,500\ times`