Author Question: 51.7 of the residents of Idlington Garden City are female. A) statistic B) ... (Read 52 times)

arivle123 · **on:** Jul 25, 2018

51.7 of the residents of Idlington Garden City are female.

A) statistic B) parameter

Question 2

Let the random variable X represent the winnings at one play of game A. The mean, , of X is known to be -0.42 and its standard deviation, , is 0.27. Let the random variable Y represent the winnings at one play of game B.

The mean, , of Y is known to be -0.42 and its standard deviation, , is 0.20. You have decided to play one of these two games just once. At which game are you more likely to make a profit (i.e., to not lose money)? Explain your thinking.

mjbamaung · **Reply #1 on:** Jul 25, 2018

Answer to Question 1

B

Answer to Question 2

Answers will vary. Possible answer: You are more likely to make a profit in one play of game A than in one play of game B. The standard deviation of X is larger than the standard deviation of Y which means that there is a greater chance that X could be so far from the mean.