Find the Expected Value

question 254

Multiple Choice

Find the expected value.
-A bus arrives at a bus stop at 10 am, 10 minutes past ten, and 11.00 am. You arrive at the bus stop at random times between 10.00 am and 11.00 am every day, so all arrival times are equally likely.
Find your expected waiting time for the bus.
[Hint: Find the probability that you will arrive at the bus stop between 10.00 am and 10 minutes
Past ten and find your mean waiting time in that case. Then find the probability that you will arrive
At the bus stop between 10 minutes past ten and 11.00 am and find your mean waiting time in that
Case.]

• A)21.7 minutes
• B)15 minutes
• C)22.5 minutes
• D)43.3 minutes

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Definitions:

Faking Attention

The act of pretending to be engaged or interested in what someone is saying when one is not truly attentive.

Over-listening

The act of giving too much attention to the act of listening to the point where the listener may miss the overall message or context.

Stereotyping

The oversimplified and generalized view or belief about a particular group of people or things, often based on limited or prejudiced information.

Casual Listening

Casual listening involves hearing information or content without active engagement or focus, often in informal or relaxed settings.