Chapter 0.3, Problem 22E

To determine

To find Probability of outcome where three coins were tossed.

Answer to Problem 22E

  $P=\frac{1}{2}$

Explanation of Solution

Given Information: Three coins were tossed

Formula Used : $P=\frac{PossibleOutcomes}{TotalOutcomes}$

Calculation:

When three coins were tossed number of outcomes is 1.

To find the probability of outcome where three coins were tossed is at least two of the coins is heads, the possible outcomes will be 4.

  $P\left(atLeastTwoHeads\right)=\frac{PossibleOutcomes}{TotalOutcomes}$

So-

  $P=\frac{4}{8}$

Hence the final answer is,

  $P=\frac{1}{2}$