Question 1

In factorial notation,the expression 6! equals:

Accepted Answer

A) 6 factorial 
B) (6)(5)(4)(3)(2)(1)= 720 
C) a and b 
D) neither a nor b 
A) 6 factorial 
B) (6)(5)(4)(3)(2)(1)= 720 
C) a and b 
D) neither a nor b

Question 2

A marketing researcher at a computer company did a study examining user satisfaction with two operating systems.A total of 300 users were surveyed on the type of operating system used and their satisfaction with it.Use the following data set to answer questions 6-14:  
Which of the following is an expression of the probability of a simple event?

Accepted Answer

A) The probability that a user is satisfied given use of either system 9 or 10. 
B) The probability that a user is not satisfied with system 9. 
C) The probability that a user is not satisfied with either system 9 or 10. 
D) The probability that people use system 9,but not system 10. 
A) The probability that a user is satisfied given use of either system 9 or 10. 
B) The probability that a user is not satisfied with system 9. 
C) The probability that a user is not satisfied with either system 9 or 10. 
D) The probability that people use system 9,but not system 10.

Question 3

According to classical probability theory,the act of selecting a card at random from a deck is called a(n)

Accepted Answer

A) trial 
B) event 
C) conditional probability 
D) joint probability 
A) trial 
B) event 
C) conditional probability 
D) joint probability

Question 4

In the language of probability theory,the act of flipping a coin is called a(n)_____ and each unique outcome is called a(n)_____.

Accepted Answer

A) observation;trial 
B) trial;event 
C) event;observation 
D) none of these 
A) observation;trial 
B) trial;event 
C) event;observation 
D) none of these

Question 5

There are 6 students running for president at state college.The top 2 candidates are always declared winners and a run-off election is held to determine which of the two is the president.How many ways could 2 students be selected from among the first 6?

Accepted Answer

A) 30 
B) 6!/2! 
C) 15 
D) 63 
A) 30 
B) 6!/2! 
C) 15 
D) 63

Question 6

Researchers in health and advertising are interested in looking at how alternative forms of alcohol advertising are related to actual alcohol use among youth.Imagine you have conducted a study looking at the relationship between owning an item that advertises alcohol (such as a hat,t-shirt or cup with an alcohol logo on it)and having tried alcohol among a group of 12-year-olds.You observe 500 cases total.Of those 500 cases,100 have tried alcohol.For the 100 cases who have tried alcohol,32 own an item that advertises alcohol.You wish to address the following research question: Is the observation that 32 out of 100 youths who have tried alcohol own an advertising item sufficient evidence to say that these two factors are related? Using an alpha level of .05 as the criterion,what should we conclude about the likelihood that trying alcohol and owning an alcohol advertising item are related?

Accepted Answer

Because the probability of obt

Question 7

In the language of probability theory,the act of flipping a coin is called an event and each unique outcome is called a trial.

Accepted Answer

A) True 
 B)False

Question 8

The probability of drawing a red card from a deck of normal playing cards is .5 (half red,half black).A magician draws 12 cards from the deck.What is the probability that the magician draws 10 red cards?

Accepted Answer

A) .0002 
B) .004 
C) .016 
D) .064 
A) .0002 
B) .004 
C) .016 
D) .064

Question 9

The variance of a binomial distribution is equal to ì.

Accepted Answer

A) True 
 B)False

Question 10

The probability of the likelihood of an event given some other event refers to a ____________________ probability.

Accepted Answer

The answer of The probability of the likelihood of an...

Question 11

Researchers in health and advertising are interested in looking at how alternative forms of alcohol advertising are related to actual alcohol use among youth.Imagine you have conducted a study looking at the relationship between owning an item that advertises alcohol (such as a hat,t-shirt or cup with an alcohol logo on it)and having tried alcohol among a group of 12-year-olds.You observe 500 cases total.Of those 500 cases,100 have tried alcohol.For the 100 cases who have tried alcohol,32 own an item that advertises alcohol.You wish to address the following research question: Is the observation that 32 out of 100 youths who have tried alcohol own an advertising item sufficient evidence to say that these two factors are related? Convert the value of 68 to a z score.

Accepted Answer

The answer of Researchers in health and advertising are interested...

Question 12

The outcome of a trial according to probability theory is a(n)_____.

Accepted Answer

A) conditional probability 
B) marginal frequency 
C) event 
D) joint probability 
A) conditional probability 
B) marginal frequency 
C) event 
D) joint probability

Question 13

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal:

Accepted Answer

A) 100 
B) .01 
C) .10 
D) 1.0 
A) 100 
B) .01 
C) .10 
D) 1.0

Question 14

Adding probabilities refers to focusing on the likelihood that at least one of two events will occur and involves adding p(A)+ p(B),as long as the two events are mutually exclusive.

Accepted Answer

A) True 
 B)False

Question 15

A sample of 500 people aged 30 - 40 years old were interviewed to study the relationship between whether a person graduated from college or only high school and whether s/he changed jobs in the last 5 years.The results are found in the contingency table below.  
Answers below have been rounded to two decimal places.
What is the probability that an individual has changed jobs?

Accepted Answer

A) .23 
B) .49 
C) .51 
D) .64 
A) .23 
B) .49 
C) .51 
D) .64

Question 16

A counting rule that involves a set of objects of events in an ordered sequence is called a ____.

Accepted Answer

A) combination 
B) conditional rule 
C) binomial 
D) permutation 
A) combination 
B) conditional rule 
C) binomial 
D) permutation

Question 17

A joint probability is the likelihood of a causal relationship between two events.

Accepted Answer

A) True 
 B)False

Question 18

A marketing researcher at a computer company did a study examining user satisfaction with two operating systems.A total of 300 users were surveyed on the type of operating system used and their satisfaction with it.Use the following data set to answer questions 6-14:  
What is the probability that a person uses system 9?

Accepted Answer

A) .813 
B) .187 
C) .740 
D) .260 
A) .813 
B) .187 
C) .740 
D) .260

Question 19

The likelihood of observing each of two events is referred to as a:

Accepted Answer

A) hypothesis 
B) binomial probability 
C) conditional probability 
D) joint probability 
A) hypothesis 
B) binomial probability 
C) conditional probability 
D) joint probability

Question 20

A marketing researcher at a computer company did a study examining user satisfaction with two operating systems.A total of 300 users were surveyed on the type of operating system used and their satisfaction with it.Use the following data set to answer questions 6-14:  
What is the probability that a person is satisfied given that they use system 9?

Accepted Answer

A) .295 
B) .893 
C) .705 
D) .107 
A) .295 
B) .893 
C) .705 
D) .107

In factorial notation,the expression 6! equals:

According to classical probability theory,the act of selecting a card at random from a deck is called a(n)

In the language of probability theory,the act of flipping a coin is called a(n)_ and each unique outcome is called a(n)_.

There are 6 students running for president at state college.The top 2 candidates are always declared winners and a run-off election is held to determine which of the two is the president.How many ways could 2 students be selected from among the first 6?

In the language of probability theory,the act of flipping a coin is called an event and each unique outcome is called a trial.

The probability of drawing a red card from a deck of normal playing cards is .5 (half red,half black).A magician draws 12 cards from the deck.What is the probability that the magician draws 10 red cards?

The variance of a binomial distribution is equal to ì.

The probability of the likelihood of an event given some other event refers to a ____________________ probability.

The outcome of a trial according to probability theory is a(n)_____.

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal:

Adding probabilities refers to focusing on the likelihood that at least one of two events will occur and involves adding p(A)+ p(B),as long as the two events are mutually exclusive.

A counting rule that involves a set of objects of events in an ordered sequence is called a ____.

A joint probability is the likelihood of a causal relationship between two events.

The likelihood of observing each of two events is referred to as a:

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 6: Probability

In factorial notation,the expression 6! equals:

According to classical probability theory,the act of selecting a card at random from a deck is called a(n)

In the language of probability theory,the act of flipping a coin is called a(n)_____ and each unique outcome is called a(n)_____.

There are 6 students running for president at state college.The top 2 candidates are always declared winners and a run-off election is held to determine which of the two is the president.How many ways could 2 students be selected from among the first 6?

In the language of probability theory,the act of flipping a coin is called an event and each unique outcome is called a trial.

The probability of drawing a red card from a deck of normal playing cards is .5 (half red,half black).A magician draws 12 cards from the deck.What is the probability that the magician draws 10 red cards?

The variance of a binomial distribution is equal to ì.

The probability of the likelihood of an event given some other event refers to a ____________________ probability.

The outcome of a trial according to probability theory is a(n)_____.

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal:

Adding probabilities refers to focusing on the likelihood that at least one of two events will occur and involves adding p(A)+ p(B),as long as the two events are mutually exclusive.

A counting rule that involves a set of objects of events in an ordered sequence is called a ____.

A joint probability is the likelihood of a causal relationship between two events.

The likelihood of observing each of two events is referred to as a:

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T-Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

In the language of probability theory,the act of flipping a coin is called a(n)_ and each unique outcome is called a(n)_.