The Number of Copies Sold of a Newsmagazine Varies from Week

question 19

Essay

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? $$\begin{array} { | c | c | c | c | c | } \hline x & 0 & 1 & 2 & 3 \\\hline P ( x ) & 0.15 & 0.25 & 0.40 & 0.20 \\\hline\end{array}$$

---

Definitions:

Net Operating Income

Income from a company's everyday business operations, excluding expenses from interest and taxes.

Monthly Sales

The total revenue generated from the sale of goods or services within a single month.

Advertising Budget

The amount of money a company decides to allocate towards advertising its products or brand over a certain period.

Margin Of Safety

The difference between actual or projected sales and the break-even point, indicating the level of risk in a business.