The Accompanying Table Gives the Outcomes and Probability Distribution of the Number

question 57

Essay

The accompanying table gives the outcomes and probability distribution of the number of
times a student checks her e-mail daily: $$\begin{array}{l}\text { Probability of Checking E-Mail }\\\begin{array} { | l | l | l | l | l | l | l | l | } \hline \begin{array} { l } \text { Outcome } \\\text { (number of e- } \\\text { mail checks) }\end{array} & 0 & 1 & 2 & 3 & 4 & 5 & 6 \\\hline \begin{array} { l } \text { Probability } \\\text { distribution }\end{array} & 0.05 & 0.15 & 0.30 & 0.25 & 0.15 & 0.08 & 0.02 \\\hline\end{array}\end{array}$$ Sketch the probability distribution.Next, calculate the c.d.f.for the above table.What is
the probability of her checking her e-mail between 1 and 3 times a day? Of checking it
more than 3 times a day?

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Definitions:

Variable Cost

Variable costs are expenses that vary directly with the level of production or business activity, such as raw materials and direct labor.

Income Increase

Income increase refers to the rise in earnings over a period, which could be due to various factors such as revenue growth, cost reduction, or operational efficiency improvements.

DuPont Formula

A financial ratio based formula that measures a company's return on equity by multiplying its net profit margin, asset turnover, and financial leverage.

Investment Turnover

A ratio that measures the efficiency with which a company is able to generate revenue from its investments in assets.