The number of cartoons watched on Saturday mornings by students in Mrs. Kelly's first g/ class is shown below.
$\begin{array} { l c c c c c c } \text { Number of cartoons watched } \boldsymbol { X } & 0 & 1 & 2 & 3 & 4 & 5 \ \text { Probability } \boldsymbol { P } ( \boldsymbol { X } ) & 0.15 & 0.20 & 0.30 & 0.10 & 0.20 & 0.05 \end{array}$
What is the mean of the data? de
A) 1.37
B) 2.15
C) 1.18
D) 1.89

Question

Quizplus · Accepted Answer

The mean of the data is calculated by multiplying each value of $X$ by its corresponding probability $P(X)$ and then summing these products: $0(0.15) + 1(0.20) + 2(0.30) + 3(0.10) + 4(0.20) + 5(0.05) = 0 + 0.20 + 0.60 + 0.30 + 0.80 + 0.25 = 2.15$.

The Number of Cartoons Watched on Saturday Mornings by Students