Simplily x+2x+7-5x+8
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Answer:
The duration of the randomly selected class is 52.6 minutes.
Step-by-step explanation:
The random variable <em>X</em> is defined as the duration of a professor's class.
It is provided that, .
The pdf of <em>X</em> is:
It is provided that the probability that the duration of the class is longer than <em>c</em> number of minutes is 0.468.
That is, P (X > c) = 0.468.
Compute the value of <em>c</em> as follows:
Thus, the duration of the randomly selected class is 52.6 minutes.