Javier volunteers does not do more than five events in a month
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Javier volunteers does not do more than five events in a month

Use the following information to answer the next five exercises:

Javier volunteers does not do more than five events in a month. He attends exactly five events 35% of the time, four events 25% of the time, three events 20% of the time, two events 10% of the time, one event 5% of the time, and no events 5% of the time.

13. Define the random variable X.

14. What values does x take on?

15. Construct a PDF table.

16. Find the probability that Javier volunteers for less than three events each month. P(x 3) = _

17. Find the probability that Javier volunteers for at least one event each month. P(x > 0) =

4.2 Mean or Expected Value and Standard Deviation

18. Complete the expected value table.


Hint
StatisticsStandard deviation looks at how to spread out a group of numbers is from the mean or the average, by looking at the square root of the variance. It is a measure of the amount of variation or dispersion of a given set of values useful tool in investing and trading strategies....

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