Question

mean, after that, what the profit/loss - sale price minus cost -would be.) And, can we trust them? 5. In roulette, a player can place a $5 bet on the number 17 and have a 1/38 probability of winning. If the player wins, he/she will receive S175.00. Otherwise, the will take the S5.00. What is the expected value of the game to the player? Steel rods are manufactured with a mean length of 25 cm. tolerances, the lengths of these rods are approximately normally distributed with a standard deviation of.07 cm. Because of the machinery 6. What is the probability that a randomly selected rod has a length less than 24.85 cm? a. Any rods which are shorter than 24.85 cm or longer than 25.15 cm will be discarded. Approximately what percentage of the rods will be discarded? (Draw your picture, shade in the two areas that are to be excluded, calculate the probabilities- areas- of each, and add them.) b.

Answer 1

6)

⑥ Here we have 0.016 2 Ζ -2-14 久く24.85)-p P(z 4 -2-14) D、0162 n-H、25.IS_ 2S 0 07 丿一一0-5838 0.0612.

.ol o 0162 0.016 2
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