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9. An experiment consists of drawing two balls at random from a bowl that contains 2 red balls, 1 white ball, and 3 green balls. What is the probability that the balls will have different colors? (A) (B) (C) & (D) (E) !!

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Tod Thiel
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24 Apr 2018
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PROBLEM 04: An experiment consists of making two selections, one after another, from a box that contains 1 red ball, 2 green balls, and 1 yellow ball, and noting the color of each ball selected. If the red ball is selected on the first reach into the box, then it is replaced before the second selection is made, but if the red ball is not selected on the first reach into the box, then the selected ball is not returned to the box before the second selection is made. How many outcomes are in the sample space for this experiment? A) 7 B) 5 C) 9 D) 6 E) 8 N) none of the above

1. Professor Schrödinger has 4 white cats and 6 grey cats. He selects two cats at random for his famous experiment. What is the probability that the two selected cats are of the same color? (a) 8/15 (b) 1/3 (c) 1/2 (d) 7/15 (e) 24/15 (f) none of the above

14. A paychologist has a maze with three compartments. For an experiment, each compartment is to be painted with a single color. Different compartments may have the same color or not depending upon the experiment. In how many different ways can the compartments be colored if the colors are white, black and yellow? a) 9 b) 27 c) 12 d) 243 e) 15 81 g) none of the others

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