A local bakery has determined a probability distribution for the number of cheesecakes it sells in a given day. The distribution is as follows: $$\begin{array} { l | c c c c c }
\text { Number sold in a day } & 0 & 5 & 10 & 15 & 20 \
\hline \text { Prob (Number sold) } & 0.21 & 0.16 & 0.1 & 0.24 & 0.29
\end{array}$$ Find the number of cheesecakes that this local bakery expects to sell in a day.
A)10
B)11.41
C)11.2
D)20

Question

A local bakery has determined a probability distribution for the number of cheesecakes it sells in a given day. The distribution is as follows: $$\begin{array} { l | c c c c c } 
\text { Number sold in a day } & 0 & 5 & 10 & 15 & 20 \
\hline \text { Prob (Number sold) } & 0.21 & 0.16 & 0.1 & 0.24 & 0.29
\end{array}$$ Find the number of cheesecakes that this local bakery expects to sell in a day.
A)10
B)11.41
C)11.2
D)20

Quizplus · Accepted Answer

The expected number of cheesecakes sold is calculated by multiplying each number sold by its probability and summing the results: $0(0.21) + 5(0.16) + 10(0.1) + 15(0.24) + 20(0.29) = 11.2$.

A Local Bakery Has Determined a Probability Distribution for the Number