Question

Please answer a-f. Thanks!

A gambler plays roulette 100 times betting $1 on two numbers, 7 and 11, each time. If the ball lands on either 7 or 11 then gambler wins $17, if the ball lands on any of the other 36 numbers the gambler loses $1. The roulette wheel has 38 slots numbered 1-36, 0, and 00 a) Which is the appropriate box model? The box has 38 tickets: 1 marked "7" and 1 marked "11" and the rest marked "O" The box has 38 tickets: one each of 1,2,3,...36,0, and 00 The box has 38 tickets: 2 marked "17" and 36 marked "O" The box has 38 tickets: 2 marked "17" and 36 marked "-1" Submit Answer Tries 0/3 b) How many draws from the box? Submit Answer Tries 0/3 c) The draws are made... Submit Answer Tries 0/1 d) What is the average of the box? Write your answer as a fraction Submit Answer Tries 0/3 e) What is the SD of the box? Round your answer to the nearest 2 decimal places. Submit Answer Tries 0/3 f)Use the normal approximation and the fact that the EV=$-5 and the SE=车40 (approximately) to figure the chance that the gambler will win more than 57 in 100 plays?

Answer 1

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