Decide whether the exercise involves permutations or combinations, and then solve the problem. Marbles are being drawn without replacement from a bag containing 13 marbles. (a) How many samples of 3 marbles can be drawn? (b) How many samples of 4 marbles can be drawn? (c) If the bag contains 2 yellow, 3 white, and 8 blue marbles, how many samples of 2 marbles can be drawn in which all marbles are blue?

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Q: 9. After a significant redesign of the control station, you and the other safety engineers have requ...

A: Given: Sample size or number of hours(n) = 800 Pλ^&lt;0.02=0.9750