Question 1

Using the following frequency distribution, find the mean.

Accepted Answer

A) 38.1 
B) 39.6 
C) 41.1 
D) 40.8 
A) 38.1 
B) 39.6 
C) 41.1 
D) 40.8 B

Question 2

To find the mean for grouped data, we take the sum of all the frequencies, multiply this by the midpoint
of each class and then divide boor the sample size.

Accepted Answer

A) True 
 B)False  False

Question 3

What is the mean of the following numbers? 4, 6, 9, 11, 15

Accepted Answer

A) 6 
B) 8 
C) 9 
D) 10 
A) 6 
B) 8 
C) 9 
D) 10 C

Question 4

The mean of {-2, 0, 0, 0, -2, 4} is

Accepted Answer

The answer of The mean of {-2, 0, 0, 0,...

Question 5

Which of the following is the correct mean for the given data? 7, 8, 13, 9, 10, 11

Accepted Answer

A) 10 
B) 9.7 
C) 9.67 
D) 9 
A) 10 
B) 9.7 
C) 9.67 
D) 9

Question 6

What is the midrange of the following numbers? 5, 11, 10, 12, 4, 12, 18, 18, 18

Accepted Answer

A) 11 
B) 12 
C) 5 
D) 18 
A) 11 
B) 12 
C) 5 
D) 18

Question 7

The range of a data set is the distance between the highest value and the lowest value.

Accepted Answer

A) True 
 B)False

Question 8

What is the range of the numbers -3, 2, -5, 3, 11:

Accepted Answer

A) -3 
B) 2 
C) 6 
D) 16 
A) -3 
B) 2 
C) 6 
D) 16

Question 9

If the value 5 has z-score of -0.75 in a dataset, then the mean of that dataset is

Accepted Answer

A) 5 
B) 4.25 
C) 5.75 
D) It cannot be determined from the data given 
A) 5 
B) 4.25 
C) 5.75 
D) It cannot be determined from the data given

Question 10

Given the following data set, find the IQR.
28, 11, 22, 14, 8, 15, 25

Accepted Answer

The answer of Given the following data set, find the...

Question 11

A student scored 75 points on a test where the mean score was 81 and the standard deviation was 6.The student's z-score was

Accepted Answer

A) 13.50 
B) 0.17 
C) -0.17 
D) -1.00 
A) 13.50 
B) 0.17 
C) -0.17 
D) -1.00

Question 12

The ________________ is the mode for grouped data.
________________________________________

Accepted Answer

The answer of The ________________ is the mode for grouped...

Question 13

Given the following frequency distribution, find the mean.

Accepted Answer

A) 28.8 
B) 12.6 
C) 26.3 
D) 31.3 
A) 28.8 
B) 12.6 
C) 26.3 
D) 31.3

Question 14

Chebyshev's theorem can be used to find the minimum percentage of data values that will fall between
any two given values.

Accepted Answer

A) True 
 B)False

Question 15

The median of {-1, 6, 3, 2, -1} is

Accepted Answer

The answer of The median of {-1, 6, 3, 2,...

Question 16

The range of the set of numbers {4, 13, 3, 10, 5} is

Accepted Answer

A) 3 
B) 13 
C) 8 
D) 10 
A) 3 
B) 13 
C) 8 
D) 10

Question 17

Determine the range for this data: 4, 7, 3, 16, 5, 22, and 8:

Accepted Answer

A) 4 
B) 3 
C) 14 
D) 19 
A) 4 
B) 3 
C) 14 
D) 19

Question 18

A student scored 89 points on a test where the mean score was 83 and the standard deviation was 3.The student's z-score was

Accepted Answer

A) 27.67 
B) 29.67 
C) 0.67 
D)  2.00 
A) 27.67 
B) 29.67 
C) 0.67 
D)  2.00

Question 19

A five-number summary of a data set consists of the minimum,   , the mean,   , and the
maximum.

Accepted Answer

A) True 
 B)False

Question 20

_______________ applies to any distribution regardless of its shape.
________________________________________

Accepted Answer

The answer of _______________ applies to any distribution regardless of...

Using the following frequency distribution, find the mean.

To find the mean for grouped data, we take the sum of all the frequencies, multiply this by the midpoint of each class and then divide boor the sample size.

What is the mean of the following numbers? 4, 6, 9, 11, 15

The mean of {-2, 0, 0, 0, -2, 4} is

Which of the following is the correct mean for the given data? 7, 8, 13, 9, 10, 11

What is the midrange of the following numbers? 5, 11, 10, 12, 4, 12, 18, 18, 18

The range of a data set is the distance between the highest value and the lowest value.

What is the range of the numbers -3, 2, -5, 3, 11:

If the value 5 has z-score of -0.75 in a dataset, then the mean of that dataset is

Given the following data set, find the IQR. 28, 11, 22, 14, 8, 15, 25

A student scored 75 points on a test where the mean score was 81 and the standard deviation was 6.The student's z-score was

The is the mode for grouped data. ________________________

Given the following frequency distribution, find the mean.

Chebyshev's theorem can be used to find the minimum percentage of data values that will fall between any two given values.

The median of {-1, 6, 3, 2, -1} is

The range of the set of numbers {4, 13, 3, 10, 5} is

Determine the range for this data: 4, 7, 3, 16, 5, 22, and 8:

A student scored 89 points on a test where the mean score was 83 and the standard deviation was 3.The student's z-score was

A five-number summary of a data set consists of the minimum, , the mean, , and the maximum.

_ applies to any distribution regardless of its shape. __________________________

The Nature of Probability and Statistics

Frequency Distributions and Graphs

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Variances, and Two Proportions

Correlation and Regression

Other Chi-Square Tests

Analysis of Variance

Nonparametric Statistics

Sampling and Simulation

Filters

Exam 3: Data Description

Using the following frequency distribution, find the mean.

To find the mean for grouped data, we take the sum of all the frequencies, multiply this by the midpoint of each class and then divide boor the sample size.

What is the mean of the following numbers? 4, 6, 9, 11, 15

The mean of {-2, 0, 0, 0, -2, 4} is

Which of the following is the correct mean for the given data? 7, 8, 13, 9, 10, 11

What is the midrange of the following numbers? 5, 11, 10, 12, 4, 12, 18, 18, 18

The range of a data set is the distance between the highest value and the lowest value.

What is the range of the numbers -3, 2, -5, 3, 11:

If the value 5 has z-score of -0.75 in a dataset, then the mean of that dataset is

Given the following data set, find the IQR. 28, 11, 22, 14, 8, 15, 25

A student scored 75 points on a test where the mean score was 81 and the standard deviation was 6.The student's z-score was

The ________________ is the mode for grouped data. ________________________________________

Given the following frequency distribution, find the mean.

Chebyshev's theorem can be used to find the minimum percentage of data values that will fall between any two given values.

The median of {-1, 6, 3, 2, -1} is

The range of the set of numbers {4, 13, 3, 10, 5} is

Determine the range for this data: 4, 7, 3, 16, 5, 22, and 8:

A student scored 89 points on a test where the mean score was 83 and the standard deviation was 3.The student's z-score was

A five-number summary of a data set consists of the minimum, , the mean, , and the maximum.

_______________ applies to any distribution regardless of its shape. ________________________________________

The Nature of Probability and Statistics

Frequency Distributions and Graphs

Discrete Probability Distributions

The Normal Distribution

Confidence Intervals and Sample Size

Hypothesis Testing

Testing the Difference Between Two Means, Two Variances, and Two Proportions

Correlation and Regression

Other Chi-Square Tests

Analysis of Variance

Nonparametric Statistics

Sampling and Simulation

Filters

The is the mode for grouped data. ________________________

_ applies to any distribution regardless of its shape. __________________________