Directions: Do what is indicated.

1. Suppose three cell phones are tested at random where D represent the defective cell phone and N represent the non-defective cell phone, Let X represents the number of defective cell phones that occur. show the values of the random variable X.

2. Two balls are drawn in succession without replacement from an um containing 5 red balls and 6 blue balls. Let 2 be the random variable representing the number of blue balls. Find the values of the random variable Z.

3. Four coins are tossed. Let y be the random variable representing the number of heads that occur. Find the values of the random variable Y

4. A shipment of five computers contains that are slightly defective. If a retailer receives three of these computers at random, list the elements of the sample space S using the letters D and N for defective and non defective computers, respectively. To each sample point, assign a value x of the random variable X representing the number of computers purchased by the retailer which are slightly defective