Question

1. There are 4 quarters and 3 dimes and 1 nickel in a coin pouch. Two coins are selected at random. If XX assigns the total value of the coins to each outcome, how many distinct values does XX take?

2. Rework problem 5 in section 4.2 of your text, involving the selection of two students from a committee of students. Assume that the committee is made up of 5 males and 6 females. Two are selected at random, and a random variable XX is defined to be the number of males selected.

How many different values are possible for the random variable XX?

3.

Rework problem 9 in section 4.2 of your text, involving a defective vending machine. Assume that the machine yields the item selected 70 percent of the time, and returns nothing 30 percent of the time. Three individuals attempt to use the machine. Let XX be defined as the number of individuals who obtain the item selected.

How many different values are possible for the random variable XX?

Answer 1

we have to find the how many different values random variable XX take

1. XX take 5 values

2. XX take 3 values

3. XX take 4 values