Question 1

Probabilities are determined by dividing the number of outcomes in an event by the number of all possible outcomes that can occur.

Accepted Answer

A) True 
 B)False

Question 2

If a statistics class has a distribution of grades with a mean of 70 and standard deviation of 15, what score is at the 90th percentile?

Accepted Answer

A)  70 
B)  85 
C)  89 
D)  92 
A)  70 
B)  85 
C)  89 
D)  92

Question 3

As we move from .1 standard deviations up to 4 standard deviations we are steadily decreasing the percentage of cases that fall between the mean and the number of standard deviations from the mean.

Accepted Answer

A) True 
 B)False

Question 4

Rolling a "1" on a standard die means that another number did not/cannot come up. What is this an example of?

Accepted Answer

A)  disjoint events 
B)  addition rule of probability 
C)  independent events 
D)  multiplication rule of probability 
A)  disjoint events 
B)  addition rule of probability 
C)  independent events 
D)  multiplication rule of probability

Question 5

Use the following table to answer questions:
RACE OF RESPONDENT
  
-What is the probability of consecutively selecting a respondent who is white followed by a respondent who is black?

Accepted Answer

A)  .10 
B)  .14 
C)  .27 
D)  .87 
A)  .10 
B)  .14 
C)  .27 
D)  .87

Question 6

Determining the probability in question 7 utilizes which of the following?

Accepted Answer

A)  z-scores 
B)  addition rule of probability 
C)  multiplication rule of probability 
D)  both b and c 
A)  z-scores 
B)  addition rule of probability 
C)  multiplication rule of probability 
D)  both b and c

Question 7

Determining the probability in question 10 utilizes which of the following?

Accepted Answer

A)  probability without replacement 
B)  addition rule of probability 
C)  probability with replacement 
D)  multiplication rule of probability 
A)  probability without replacement 
B)  addition rule of probability 
C)  probability with replacement 
D)  multiplication rule of probability

Question 8

Which of the following z-scores encompasses the greatest area under the normal curve?

Accepted Answer

A)  -2.2 
B)  -1.2 
C)  0 
D)  1.5 
A)  -2.2 
B)  -1.2 
C)  0 
D)  1.5

Question 9

If a statistics class has a distribution of grades with a mean of 70 and standard deviation of 15, what is the z-score associated with a raw score of 85?

Accepted Answer

A)  -1 
B)  0 
C)  1 
D)  1.5 
A)  -1 
B)  0 
C)  1 
D)  1.5

Probabilities are determined by dividing the number of outcomes in an event by the number of all possible outcomes that can occur.

If a statistics class has a distribution of grades with a mean of 70 and standard deviation of 15, what score is at the 90^th percentile?

As we move from .1 standard deviations up to 4 standard deviations we are steadily decreasing the percentage of cases that fall between the mean and the number of standard deviations from the mean.

Rolling a "1" on a standard die means that another number did not/cannot come up. What is this an example of?

Use the following table to answer questions: RACE OF RESPONDENT -What is the probability of consecutively selecting a respondent who is white followed by a respondent who is black?

Determining the probability in question 7 utilizes which of the following?

Determining the probability in question 10 utilizes which of the following?

Which of the following z-scores encompasses the greatest area under the normal curve?

If a statistics class has a distribution of grades with a mean of 70 and standard deviation of 15, what is the z-score associated with a raw score of 85?

Concepts, Variables, and Measurement

Frequency Tables

Measures of Central Tendency

Measures of Dispersion

Probabilityfrom Samples to Statistics

Cross-Tabulation Tables and Chi-Square

Measures of Association for Categorical Variables

Analysis of Variance

Correlation and Regression

Filters

Exam 5: Probability and the Normal Curve

Probabilities are determined by dividing the number of outcomes in an event by the number of all possible outcomes that can occur.

If a statistics class has a distribution of grades with a mean of 70 and standard deviation of 15, what score is at the 90th percentile?

As we move from .1 standard deviations up to 4 standard deviations we are steadily decreasing the percentage of cases that fall between the mean and the number of standard deviations from the mean.

Rolling a "1" on a standard die means that another number did not/cannot come up. What is this an example of?

Use the following table to answer questions: RACE OF RESPONDENT -What is the probability of consecutively selecting a respondent who is white followed by a respondent who is black?

Determining the probability in question 7 utilizes which of the following?

Determining the probability in question 10 utilizes which of the following?

Which of the following z-scores encompasses the greatest area under the normal curve?

If a statistics class has a distribution of grades with a mean of 70 and standard deviation of 15, what is the z-score associated with a raw score of 85?

Concepts, Variables, and Measurement

Frequency Tables

Measures of Central Tendency

Measures of Dispersion

Probabilityfrom Samples to Statistics

Cross-Tabulation Tables and Chi-Square

Measures of Association for Categorical Variables

Analysis of Variance

Correlation and Regression

Filters

If a statistics class has a distribution of grades with a mean of 70 and standard deviation of 15, what score is at the 90^th percentile?