The number of copies sold of a newsmagazine varies from week to week. Empirical
data gathered over many years suggest the following distribution of x = weekly sales
(rounded to the nearest million.) What is the mean of this distribution? $$\begin{array} { | c | c | c | c | c | }
\hline x & 0 & 1 & 2 & 3 \
\hline P ( x ) & 0.15 & 0.25 & 0.40 & 0.20 \
\hline
\end{array}$$

Question

The number of copies sold of a newsmagazine varies from week to week. Empirical
data gathered over many years suggest the following distribution of x = weekly sales
(rounded to the nearest million.) What is the mean of this distribution? $$\begin{array} { | c | c | c | c | c | } 
\hline x & 0 & 1 & 2 & 3 \
\hline P ( x ) & 0.15 & 0.25 & 0.40 & 0.20 \
\hline
\end{array}$$

Quizplus · Accepted Answer

The Answer of The number of copies sold of a newsmagazine varies from week to week. Empirical
data gathered over many years suggest the following distribution of x = weekly sales
(rounded to the nearest million.) What is the mean of this distribution? $$\begin{array} { | c | c | c | c | c | } 
\hline x & 0 & 1 & 2 & 3 \
\hline P ( x ) & 0.15 & 0.25 & 0.40 & 0.20 \
\hline
\end{array}$$

The Number of Copies Sold of a Newsmagazine Varies from Week