Find the Specified Probability The Professor Gives Each Student 10 Minutes

question 151

Multiple Choice

Find the specified probability.
-A statistics professor has office hours from 9:00 am to 10:00 am each day. The number of students waiting to see the professor is a random variable, X, with the distribution shown in the table. $\begin{array}{c|c|c|c|c|c|c}\mathrm{x} & 0 & 1 & 2 & 3 & 4 & 5 \\\hline \mathrm{P}(\mathrm{X}=\mathrm{x}) & 0.05 & 0.10 & 0.40 & 0.25 & 0.15 & 0.05\end{array}$
The professor gives each student 10 minutes. Determine the probability that a student arriving just after 9:00 am will have to wait no longer than 20 minutes to see the professor.

• A)\(0.40\)
• B) \(0.55\)
• C) \(0.80\)
• D) \(0.15\)

Recognize the role of cultivation theory in shaping perceptions of reality through prolonged media exposure.

Identify the effects of media violence on children and societal perceptions of violence.

Understand the concept of desensitization to violence due to repeated media exposure.

Recognize the implications of media representations on gender and ethnic stereotypes.

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Definitions:

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