Math 227 - Statistics » Spring 2023 » 08KC Probability Distributions

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Question #1
Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Most outcomes depend on the sum of the up faces of two, fair, six-sided dice. Define the random variable. X = _____________ of the up faces of two, fair, six-sided dice
A.   sum
B.   number
C.   ratio
D.   average
Question #2
Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Most outcomes depend on the sum of the up faces of two, fair, six-sided dice. Describe the sample space for all possible outcomes of rolling two dice. How many ways are there to roll a 5?
A.   2
B.   8
C.   6
D.   4
Question #3
Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Most outcomes depend on the sum of the up faces of two, fair, six-sided dice. Determine all possible random variable values and the probability of those outcomes. Find the probability of rolling an 8. (Express your answer as a decimal rounded to the nearest ten-thousandth.)
A.   0.1389
B.   0.1595
C.   0.1473
D.   0.1217
Question #4
Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Most outcomes depend on the sum of the up faces of two, fair, six-sided dice. Construct a probability histogram (a relative frequency histogram of probabilities). What is the lower class boundary of the "6" class?
A.   4.2
B.   5.1
C.   5.5
D.   4.8
Question #5
Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Most outcomes depend on the sum of the up faces of two, fair, six-sided dice. Find the mean.
A.   7
B.   9
C.   5
D.   3
Question #6
Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Most outcomes depend on the sum of the up faces of two, fair, six-sided dice. Find the standard deviation. (Round to the nearest ten-thousandth.)
A.   2.0313
B.   1.9872
C.   2.4152
D.   2.326
Question #7
Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Most outcomes depend on the sum of the up faces of two, fair, six-sided dice. Would it be unusual for a shooter to roll snake eyes? Find the z-score for snake eyes. (Round to the nearest hundredth (just like all other z-score values).)
A.   -2.07
B.   -1.99
C.   -2.99
D.   -1.68
Question #8
Roulette is a casino game in which players may choose to place bets on either a single number, a range of numbers, red or black, odd or even, or other outcomes. Consider the amount of money won/lost when betting $5 on 12. Define the random variable. X = net amount of ____________ won/lost when betting $5 on 12
A.   range
B.   money
C.   numbers
D.   bets
Question #9
Roulette is a casino game in which players may choose to place bets on either a single number, a range of numbers, red or black, odd or even, or other outcomes. Consider the amount of money won/lost when betting $5 on 12. Describe the expectation of the random variable in a sentence. The expectation of the random variable X is the expected net amount of money won/lost when betting $5 on 12. Although the result may not be either the value won or the value lost on a single gamble, the expectation represents the ___________ value of the wins and losses when betting $5 on 12 over many gambles.
A.   net
B.   sum
C.   single
D.   mean
Question #10
Roulette is a casino game in which players may choose to place bets on either a single number, a range of numbers, red or black, odd or even, or other outcomes. Consider the amount of money won/lost when betting $5 on 12. Find the value of winning/losing when betting $5 on 12. The odds paid on a straight bet are 35:1. What is the net amount of money won when betting $5 on 12? (Do NOT use a $ in your answer.)
A.   115
B.   175
C.   125
D.   145
Question #11
Roulette is a casino game in which players may choose to place bets on either a single number, a range of numbers, red or black, odd or even, or other outcomes. Consider the amount of money won/lost when betting $5 on 12. Find the probabilities of winning or losing when betting $5 on 12. What is the probability of losing money when betting $5 on 12? (Express your answer as a decimal rounded to the nearest ten-thousandth.)
A.   0.9163
B.   0.7567
C.   0.9737
D.   0.8315
Question #12
Roulette is a casino game in which players may choose to place bets on either a single number, a range of numbers, red or black, odd or even, or other outcomes. Consider the amount of money won/lost when betting $5 on 12. Find the expectation of betting $5 on 12. (Do NOT use a $ in your answer. Round to the nearest hundredth (penny).)
A.   -0.26
B.   -0.36
C.   -0.12
D.   -0.22
Question #13
Roulette is a casino game in which players may choose to place bets on either a single number, a range of numbers, red or black, odd or even, or other outcomes. Consider the amount of money won/lost when betting $5 on 12. Consider placing 1000 $5 bets in a row on 12. How much money should the gambler have after the 1000th gamble based on the expectation? (Do NOT use a $ in your answer.)
A.   4,230
B.   4,740
C.   3,950
D.   4,160
Question #14
Roulette is a casino game in which players may choose to place bets on either a single number, a range of numbers, red or black, odd or even, or other outcomes. Consider the amount of money won/lost when betting $5 on 12. How much money should a casino with 5 active roulette tables running 24-hours a day expect to earn based on a LOW average of 45 spins per hour and 25 straight bets in the field per spin? (Do NOT use a $ in your answer.)
A.   35,100
B.   38,900
C.   25,900
D.   29,660

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