1) Find the z value to the right of the mean such that 85% of the total area under the standard normal distribution curve lies to the left of it?

2) If 7.5% of teh bolts made by an automotive factory are defective, what is the probability that in a shipment of 20 bolts, there are 6 defective bolts?

3) Box A contains the numbers 1,2,3 and 4. Box B contains the numers 5,6,7, and 8. A number is first drawn from Box A and then another number from Box B. How many outcomes are possible if both numbers are even?

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