You have 85 minutes to complete the exam. All questions are multiple choice. Ent

Question

You have 85 minutes to complete the exam. All questions are multiple choice. Enter your answers on a Scantron sheet by filling in the corresponding bubble. Turn in the Scantron sheet and this exam. 4.1 Properties of Probabilities 1) Which of the following could not possibly be probabilities? A. -0.86 B. C. 0 12 D. 0.75 A) A and D B) B and C C) A an D) A and C 4.1 Find the indicated probability. 2) A bag contains 6 red marbles, 3 blue marbles, and 5 green marbles. If a marble is randomly selected from the bag, what is the probability that it is blue? A) B) C) D) 14 3) If you flip a coin three times, the possible outcomes are HHH HHT HTH HTT THH THT TTH TTT. What is the probability of getting at least two tails? A) B) C) D) 8 tcomes can be represented as follows. (1, 1X2, 1X3, 1X4, 1X5, 1X6, 1) (1, 2%2, 213, 2X4, 215, 26, 2) (1, 3Y2, 3)3, 3)4, 3x5, 316, 3) (1, 4X2, 4X3, 4X4, 4X5, 4X6, 4) (1, 5X2, 5)3, 5%4, 5X5, 516, 5) (1, 6X2, 613, 6X4, 6X5, 6X6, 6) Determine the probability that the sum of the dice is 7. A) C) D) 36 36

Explanation / Answer

2) Total number of marbles = 6 + 3 + 5 = 14

Number of blue marbles = 3

So,

P(Blue marble) = 3/14

Option B is correct.

3) Option D is correct.

4) Option C is correct.

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