Subject: Probability and Statistics

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Topics: Random Variables, Values of Random Variables and Probability Distribution

Direction: Choose the correct answer for the following questions:

Page 9-10 Item no. 1: A variable where the information or data can take infinitely many values is A. Continuous variable B. Discrete variable C. Quantitative D. Qualitative variable Page 9-10 Item no. 4: Which of the following is a variable whose value is obtained by measuring? A. Continuous B. Discrete C. Interval D. Normal Page 20-21 Item no. 4: You decided to order a pizza but you have to choose the type of crust and the toppings. If there are only 6 possible combinations of ordering a pizza, from which of the following should you choose? A. Crust thin or deep dish Toppings: cheese or pepperoni B. Crust: thin or deep dish Toppings: cheese, bacon or pepperoni C. Crust thin or deep dish Toppings cheese, bacon, sausage or pepperoni D. Crust thin or deep dish Toppings: cheese, bacon, sausage, pepperoni or hotdog Page 20-21 Item no. 5: A drawer has 2 red ties, 3 black ties and 5 blue ties. A tie is picked at random. What is the total number of possible outcomes? A. 2 8. 3 C.5 D. 10 Page 31-33 Item no. 3: If a coin is tossed, what are the possible values of the randomn variable for the number of tails? A.0. 1 C1,23 B. O. 1. 2 D. O. 1,2.3 Page 31-33 Item no. 5: How many possible outcomes will occur from the experiment above? A 2 C.68.4D. 8Page 45-48 Item no. 3: If two balls are drawn in succession without replacement from an um containing 4 red balls and 5 blue balls. If the value of the random variable X represents the number of blue balls. What is the probability of getting two blue balls? Page 45-48 Item no. 4: Which probability distribution represents the given problem? Page 58-60 Item no. 4: 4. Find P (X s 1) A. 0.125 C. 0.625 B. 0.5 D. 0.875 Page 58-60 Item no. 5: Find P (X = 1) A. 0.125 C. 0.625 B. 0.5 D. 0.875