Calculator Worksheet Chapter 4

2. Chapter 4.1, #38, page 200 (you can use the same calculator function that you used in problem 1 above to find
expected value)
a. Draw a table showing Gain and Probability (see Example 7). Enter Gain values in L1 and enter
Probability values in L2.
b. Calculate the expected value (write your answer using the appropriate technology).
c. Interpret the results

In
Exercises
37 and 38, find the expected value E(x) to the player for one play of the game. If x is the gain to a player in a game of chance, then E(x) is usually negative. This value gives the average amount per game the player can expect to lose.

A high school basketball team is selling $10 raffle tickets as part of a fund-raising program. The first prize is a trip to the Bahamas valued at $5460, and the second prize is a weekend ski package valued at $496. The remaining 18 prizes are $100 gas cards. The number of tickets sold is 3500.
4. Chapter 4.2, #31, page 212
a. Find the mean, variable and standard deviation.
b. Interpret the results. 4. Chapter 4.2, #31, page 212
a. Find the mean, variable and standard deviation.
b. Interpret the results.

In
Exercises
31–36, find the mean, variance, and standard deviation of the binomial distribution for the given random variable. Interpret the results.
Political Correctness Seventy-one percent of U.S. adults think that political correctness is a problem in America today. You randomly select seven U.S. adults and ask them whether they think that political correctness is a problem in America today. The random variable represents the number of U.S. adults who think that political correctness is a problem in America today.

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