1. Suppose you toss a fair coin two times; how many possible outcomes are there? a. 1 b. 2 c. 4 d. 8
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1. Suppose you toss a fair coin two times; how many possible outcomes are there?
a. 1 b. 2 c. 4 d. 8
2. A die is rolled. What is the probability of rolling a number that is greater than 6?
a. 0/ 6 or 0 b. 1/ 6 c. 5 /6 d. 6/ 6 or 1
3. In a family of three children, what is the probability that the middle child is a girl?
a. 1/ 8 b. 1 / 4 c. 1 / d. 1/ 2
4. A coin is tossed thrice. What is the probability of having two heads and a tail?
a. 1/ 8 b. 1/ 2 c. 3/ 8 d. 1
5. It is a table showing all the possible value of a discrete random variable together with their corresponding probabilities.
a. Discrete Probability Distribution b. Continuous Probability Distribution c. Probability d. All of the above
6. It is a variable that cannot be represented by a whole number. 11
a. Probability variable b. Random variable c. Discrete random variable d. Continuous random variable
7. Y = dropout rate (%) in a certain high school. What are the possible values of each random variable?
a. Y = {x│0 ≤ x ≤ 10} c. Y = {x│0 ≤ x ≤ 30} b. Y = {x│0 ≤ x ≤ 20} d. Y = {x│0 ≤ x ≤ 100}
8. X = number of heads in tossing a coin thrice. What are the possible values of each random variable?
a. X = {0, 1, 2, 3} c. X = {0, 2, 3} b. X = {1, 2, 3} d. X = {1, 2, 4}
9. A glass of jar contains 40 red, green, blue, and yellow marbles. The probability of drawing a single green marble at random is 1/5. What does this mean?
a. There are 5 green marbles in the glass jar. b. There are 8 green marbles in the glass jar. c. There are more green marbles than the others. d. There is only one green marble in the glass jar.
10. Apple got coins from his pocket which accidentally rolled on the floor. If there were 16 probable outcomes, how many coins fell on the floor?
a. 3 b. 4 c. 8 d. 16
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