Question 1

A cumulative relative frequency distribution shows

Accepted Answer

A)  the proportion of data items with values less than or equal to the upper limit of each class. 
B)  the proportion of data items with values less than or equal to the lower limit of each class. 
C)  the percentage of data items with values less than or equal to the upper limit of each class. 
D)  the percentage of data items with values less than or equal to the lower limit of each class. 
A)  the proportion of data items with values less than or equal to the upper limit of each class. 
B)  the proportion of data items with values less than or equal to the lower limit of each class. 
C)  the percentage of data items with values less than or equal to the upper limit of each class. 
D)  the percentage of data items with values less than or equal to the lower limit of each class.

Question 2

A cumulative frequency distribution is

Accepted Answer

A)  a tabular summary of a set of data showing the relative frequency. 
B)  a tabular summary of a set of data showing sums of frequencies. 
C)  a tabular summary of a set of data showing the frequency of items in each of several nonoverlapping classes. 
D)  a graphical device for presenting categorical data. 
A)  a tabular summary of a set of data showing the relative frequency. 
B)  a tabular summary of a set of data showing sums of frequencies. 
C)  a tabular summary of a set of data showing the frequency of items in each of several nonoverlapping classes. 
D)  a graphical device for presenting categorical data.

Question 3

A sample of fifteen 7-year old boys shows their favorite superheroes:   ​ Which of the following is the correct relative frequency for Spiderman?

Accepted Answer

A)  .27 
B)  .5 
C)  .4 
D)  .6 
A)  .27 
B)  .5 
C)  .4 
D)  .6

Question 4

The sum of the percent frequencies for all classes will always equal

Accepted Answer

A)  one. 
B)  the number of classes. 
C)  the number of elements in the study. 
D)  100. 
A)  one. 
B)  the number of classes. 
C)  the number of elements in the study. 
D)  100.

Question 5

The numbers of hours worked (per week) by 400 statistics students are shown below.   ​ The cumulative percent frequency for < 29 hours is

Accepted Answer

A)  50. 
B)  75. 
C)  200. 
D)  300. 
A)  50. 
B)  75. 
C)  200. 
D)  300.

Question 6

Below you are given the examination scores of 20 students.   ​ 
a.
Construct a frequency distribution for this data.Let the first class be 50 - 59.
b.
Construct a cumulative frequency distribution.
c.
Construct a relative frequency distribution.
d.
Construct a cumulative relative frequency distribution.

Accepted Answer

The answer of Below you are given the examination scores...

Question 7

A sample of fifteen 7-year old boys shows their favorite superheroes:   ​ Which of the following is the correct frequency distribution?
​

Accepted Answer

A)  Spiderman 4, Batman 3, Iron Man 1, Aquaman 4, Captain America 3, Superman 1 
B)  Spiderman 6, Batman 2, Iron Man 2, Aquaman 2, Captain America 2, Superman 1 
C)  Spiderman 6, Batman 1, Iron Man 3, Aquaman 1, Captain America 2, Superman 2 
D)  None of these alternatives is correct. 
A)  Spiderman 4, Batman 3, Iron Man 1, Aquaman 4, Captain America 3, Superman 1 
B)  Spiderman 6, Batman 2, Iron Man 2, Aquaman 2, Captain America 2, Superman 1 
C)  Spiderman 6, Batman 1, Iron Man 3, Aquaman 1, Captain America 2, Superman 2 
D)  None of these alternatives is correct.

A cumulative relative frequency distribution shows

A cumulative frequency distribution is

A sample of fifteen 7-year old boys shows their favorite superheroes: Which of the following is the correct relative frequency for Spiderman?

The sum of the percent frequencies for all classes will always equal

The numbers of hours worked (per week) by 400 statistics students are shown below. The cumulative percent frequency for < 29 hours is

Below you are given the examination scores of 20 students. a. Construct a frequency distribution for this data.Let the first class be 50 - 59. b. Construct a cumulative frequency distribution. c. Construct a relative frequency distribution. d. Construct a cumulative relative frequency distribution.

A sample of fifteen 7-year old boys shows their favorite superheroes: Which of the following is the correct frequency distribution?

Data and Statistics

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Tests of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

Exam 2: Descriptive Statistics: Tabular and Graphical Displays

A cumulative relative frequency distribution shows

A cumulative frequency distribution is

A sample of fifteen 7-year old boys shows their favorite superheroes: ​ Which of the following is the correct relative frequency for Spiderman?

The sum of the percent frequencies for all classes will always equal

The numbers of hours worked (per week) by 400 statistics students are shown below. ​ The cumulative percent frequency for < 29 hours is

A sample of fifteen 7-year old boys shows their favorite superheroes: ​ Which of the following is the correct frequency distribution? ​

Data and Statistics

Descriptive Statistics: Numerical Measures

Introduction to Probability

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Tests of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

A sample of fifteen 7-year old boys shows their favorite superheroes: Which of the following is the correct relative frequency for Spiderman?

The numbers of hours worked (per week) by 400 statistics students are shown below. The cumulative percent frequency for < 29 hours is

A sample of fifteen 7-year old boys shows their favorite superheroes: Which of the following is the correct frequency distribution?