Directions: Encircle the letter that corresponds to the correct answer. Explain each answer 1. Discrete variable is from qualities that can beA. MeasuredB. CountedC. Both A and BD. none of these2. Continuous variable is from qualities that can beA. MeasuredB. CountedC. Both A and BD. none of these3. Which of the following is a discrete random variable?A. the average amount of electricity consumedB. the number of patients in a hospitalC. the amount of paint used in repainting a buildingD. the average weight of female athletes4. Which of the following is a continuous random variable?A. the number of book in the libraryB. the number of votes in an electionC. the number of eggs in the basketD. the lifetime in hours of 15 flashlights5. It is a function that associates a real number to each element in the sample space. It is a variablewhose values are determined by chance.A. Random ExperimentB. Random SampleC. Random VariableD. Random process6. You decide to conduct a survey of families with two children. You are interested in counting thenumber of girls (out of 2 children) in each family. Is this a random variable and if it is, what are thepossible values?A. Yes, it is a random variable and its value can be 1 or 2.B. Yes, it is a random variable and its value can be 0, 1 or 2.C. Yes, it is a random variable and its value can be 2 or 4.D. No, it is not a random variable since it is not random.7. What is the sum of the probabilities of all values of the random variable?A. ΣΡΧ)-1B. E P(X) = 1/10C. Σ Ρ(Χ)-0D. Σ Ρ(Χ)-108. The probability of each value of the random variable must beA. between or equal to 0 and 1B. greater than 1C. between 1 and 2D. greater than 29 Which of the following can serve as the values of a probability distribution?A. P(1) = 0.42, P2) = 0.31, P(3)= 0.37B. P(1) = 9/14, P2) = 5/14, P(3)= 1/14C. P(1) = 0.08, P2) = 0.12, P(3)= 0.83D. P(1) = 10/33, P2) = 1/3, P(3)= 12/33%3D 10. If P(X)= , what are the possible values of X for it to be a probability distribution?A. 0, 2, 3, 4В. О, 1, 2, 3С. 1, 3, 4D. 1, 2, 311. Which statement is true about the standard deviation of a discrete random variable?A. It deals about the average or center of location of the probability distribution.B. It is obtained by multiplying the x values and its corresponding probability.C. It is the square root of the variance of discrete random variable.D. It is the summation of the product of the square of the difference of x and its probability.12. In a recent Barangay Basketball League, each player went to free throws 2 times. The number offree throws made by each player is described by the following probability distribution.Number of free throws, XProbability P(X)0.2010.450.35What is the mean of the probability distribution?А. 1.00В. 1.15С. 2.00D. 2.2513. What is the variance of the probability distribution?C. 0.2575A. 0.5725В. О. 7255D. 0.527514. The number of qualified voters living in household on a randomly selected subdivision block isdescribed by the following probability distribution.Number of qualified voter/s, x1234Probability, P(X)0.250.500.100.15What is the variance of the probability distribution?A. 0.99С.О.80В. О.89D. 0.7915. What is the mean of the probability distribution?С. 2.01А. 2.10В. 1.20D. 1.02

Name: Directions: Encircle the letter that corresponds to the correct answer
Uploaded: 2024-03-05T11:52:21.000Z
Channel: Bartleby
Description: Directions: Encircle the letter that corresponds to the correct answer. Explain each answer 1. Discrete variable is from qualities that can beA. MeasuredB. CountedC. Both A and BD. none of these2. Continuous variable is from qualities that can beA. M

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