The table displays the probabilities for each of the outcomes when three fair coins are tossed and the number of heads is counted. Find the probability that the number of heads on a single toss of the three coins is at most 2. $$\begin{array} { | l | c | c | c | c | }
\hline \text { Outcome } & 0 & 1 & 2 & 3 \
\hline \text { Probability } & .125 & .375 & .375 & .125 \
\hline
\end{array}$$
A) .875
B) .125
C) .500
D) .750

Question

The table displays the probabilities for each of the outcomes when three fair coins are tossed and the number of heads is counted. Find the probability that the number of heads on a single toss of the three coins is at most 2. $$\begin{array} { | l | c | c | c | c | } 
\hline \text { Outcome } & 0 & 1 & 2 & 3 \
\hline \text { Probability } & .125 & .375 & .375 & .125 \
\hline
\end{array}$$
A) .875
B) .125
C) .500
D) .750

Quizplus · Accepted Answer

The probability of getting at most 2 heads is the sum of the probabilities of getting 0, 1, or 2 heads: 0.125 + 0.375 + 0.375 = 0.875.

The Table Displays the Probabilities for Each of the Outcomes