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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