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A college graduate statistics class has eighteen students The ages of these students are as follows one student

 A college graduate statistics class has eighteen students. The ages of these students are as follows: one student is 18 years old, two are 20, nine are 22, three are 24, two are 29, and one is 40. Let X = age of any student (randomly selected). Find the probability mass function of X

2.    Five thousand instant lottery tickets were sold. One ticket has a face value of $10,000, five tickets have face values of $1000 each, twenty tickets are worth $500 each, thirty tickets have face value of $100 each, and 500 are worth $1.00 each. The rest are losers. Let X= the value of a ticket that you buy. Find the Probability mass function for X.

3.    Flying Express Airlines flight 82 from Dallas to Miami is on time 85% of the time, according to FLying Express Airlines. Suppose sixty-five fights are randomly selected.

4.    What does the random variable X represent?

5.    What is the distribution of the random variable X?

6.    How many flights from dallas to miami would you expect to arrive on time?

Apr 21 2020 View more View Less

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