Question 1

Calculate the values of the mean for the following sub-sample: 24,27,35,31,21,22,28,18,25,24,36,20.

Accepted Answer

Mean = 25.92

Question 2

Calculate the value of the standard deviation for the following sub-sample: 3,13,-4,10,0,12,-1,-2,6,9,5,11.

Accepted Answer

6.04

Question 3

Numbers that describe diversity in a distribution are referred to as measures of

Accepted Answer

A) central tendency. 
B) association. 
C) variability. 
D) standard deviation. 
A) central tendency. 
B) association. 
C) variability. 
D) standard deviation. C

Question 4

How can an IQV of .35,which describes the level of racial diversity in a southern U.S.state,be interpreted?

Accepted Answer

A) 35 respondents account for the total amount of variability in the state. 
B) 35 respondents do not account for the total amount of variability in the state. 
C) There is more variability for 35% of the respondents compared to the remaining 65%. 
D) The southern state of interest sees 35% of the maximum possible racial differences. 
A) 35 respondents account for the total amount of variability in the state. 
B) 35 respondents do not account for the total amount of variability in the state. 
C) There is more variability for 35% of the respondents compared to the remaining 65%. 
D) The southern state of interest sees 35% of the maximum possible racial differences.

Question 5

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.What is the closest value of the mean?

Accepted Answer

A) 1 
B) 5 
C) 36 
D) 24 
A) 1 
B) 5 
C) 36 
D) 24

Question 6

Consider the variable,type of birth control practiced (e.g.,an IUD,condoms,none,etc).Which measure of variability is best suited to describe variation in the distribution of this variable?

Accepted Answer

A) IQV 
B) Range 
C) Variance 
D) Standard deviation 
A) IQV 
B) Range 
C) Variance 
D) Standard deviation

Question 7

SELECT ALL THAT APPLY.
-In a distribution where all the scores are identical,

Accepted Answer

A) the standard deviation is zero. 
B) distribution is skewed. 
C) the variance is zero. 
D) the mean,median,and mode are all the same. 
A) the standard deviation is zero. 
B) distribution is skewed. 
C) the variance is zero. 
D) the mean,median,and mode are all the same.

Question 8

The quantity that is arrived at by taking the highest score minus the lowest score is referred to as the

Accepted Answer

A) interquartile range. 
B) range. 
C) standard deviation. 
D) variance. 
A) interquartile range. 
B) range. 
C) standard deviation. 
D) variance.

Question 9

The type of information on how scores are spread from the center of a distribution is obtained by

Accepted Answer

A) measures of central tendency. 
B) measures of variability. 
C) median. 
D) mean. 
A) measures of central tendency. 
B) measures of variability. 
C) median. 
D) mean.

Question 10

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.Which value is closest to the variance?

Accepted Answer

A) 9 
B) 19 
C) 24 
D) 77 
A) 9 
B) 19 
C) 24 
D) 77

Question 11

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.Which value is closest to the standard deviation?

Accepted Answer

A) 9 
B) 17 
C) 24 
D) 77 
A) 9 
B) 17 
C) 24 
D) 77

Question 12

Calculate the value of variance for the following sub-sample: 2,7,4,4,1,2,2,3,1,2,4,5

Accepted Answer

The answer of Calculate the value of variance for the...

Question 13

The box plot of a perfectly symmetrical distribution will have the box at the centre of the range as well as the median in the center of the box.

Accepted Answer

A) True 
 B)False

Question 14

IQV is based on the ratio of the total number of differences in the distribution to the maximum number of possible differences within the same distribution.

Accepted Answer

A) True 
 B)False

Question 15

Construct a box plot based on the following sub-sample: 2,7,4,4,1,2,2,3,1,2,4,5.Be sure to show the following quantities in your box plot: the minimum score,the maximum score,the range,interquartile range,and the median.

Accepted Answer

The answer of Construct a box plot based on the...

Question 16

The quantities that are needed to calculate IQV are: the number of categories and the sum of all percentages in the distribution.

Accepted Answer

A) True 
 B)False

Question 17

Calculate the range for the following sub-sample: 24,27,35,31,21,22,28,18,25,24,36,20.

Accepted Answer

The answer of Calculate the range for the following sub-sample:...

Question 18

SELECT ALL THAT APPLY.
-Consider the following hypothetical data: Catholic = 32,Protestant = 25,Jewish = 4,Muslim = 8,Other = 29,and None = 2.
Which of the following statements are true?

Accepted Answer

A) IQV = 0.89 
B) IQV = 0.11 
C) Number of religious difference is 89% of the maximum possible difference 
D) Number of religious difference is 11% of the maximum possible difference 
A) IQV = 0.89 
B) IQV = 0.11 
C) Number of religious difference is 89% of the maximum possible difference 
D) Number of religious difference is 11% of the maximum possible difference

Question 19

The simplest and most straightforward measure of variation is the range.

Accepted Answer

A) True 
 B)False

Question 20

Which three quantities are needed to calculate the variance?

Accepted Answer

A) Mean,median,and mode 
B) Mean,observed Y,N 
C) Median,observed Y,N 
D) Mean,standard deviation,N 
A) Mean,median,and mode 
B) Mean,observed Y,N 
C) Median,observed Y,N 
D) Mean,standard deviation,N

Calculate the values of the mean for the following sub-sample: 24,27,35,31,21,22,28,18,25,24,36,20.

Calculate the value of the standard deviation for the following sub-sample: 3,13,-4,10,0,12,-1,-2,6,9,5,11.

Numbers that describe diversity in a distribution are referred to as measures of

How can an IQV of .35,which describes the level of racial diversity in a southern U.S.state,be interpreted?

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.What is the closest value of the mean?

Consider the variable,type of birth control practiced (e.g.,an IUD,condoms,none,etc).Which measure of variability is best suited to describe variation in the distribution of this variable?

SELECT ALL THAT APPLY. -In a distribution where all the scores are identical,

The quantity that is arrived at by taking the highest score minus the lowest score is referred to as the

The type of information on how scores are spread from the center of a distribution is obtained by

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.Which value is closest to the variance?

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.Which value is closest to the standard deviation?

Calculate the value of variance for the following sub-sample: 2,7,4,4,1,2,2,3,1,2,4,5

The box plot of a perfectly symmetrical distribution will have the box at the centre of the range as well as the median in the center of the box.

IQV is based on the ratio of the total number of differences in the distribution to the maximum number of possible differences within the same distribution.

Construct a box plot based on the following sub-sample: 2,7,4,4,1,2,2,3,1,2,4,5.Be sure to show the following quantities in your box plot: the minimum score,the maximum score,the range,interquartile range,and the median.

The quantities that are needed to calculate IQV are: the number of categories and the sum of all percentages in the distribution.

Calculate the range for the following sub-sample: 24,27,35,31,21,22,28,18,25,24,36,20.

SELECT ALL THAT APPLY. -Consider the following hypothetical data: Catholic = 32,Protestant = 25,Jewish = 4,Muslim = 8,Other = 29,and None = 2. Which of the following statements are true?

The simplest and most straightforward measure of variation is the range.

Which three quantities are needed to calculate the variance?

The What and the Why of Statistics

The Organization and Graphic Presentation of Data

Measures of Central Tendency

The Normal Distribution

Sampling and Sampling Distributions

Estimation

Testing Hypotheses

Bivariate Tables

The Chi-Square Test and Measures of Association

Analysis of Variance

Regression and Correlation

Filters

Exam 4: Measures of Variability

Calculate the values of the mean for the following sub-sample: 24,27,35,31,21,22,28,18,25,24,36,20.

Calculate the value of the standard deviation for the following sub-sample: 3,13,-4,10,0,12,-1,-2,6,9,5,11.

Numbers that describe diversity in a distribution are referred to as measures of

How can an IQV of .35,which describes the level of racial diversity in a southern U.S.state,be interpreted?

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.What is the closest value of the mean?

Consider the variable,type of birth control practiced (e.g.,an IUD,condoms,none,etc).Which measure of variability is best suited to describe variation in the distribution of this variable?

SELECT ALL THAT APPLY. -In a distribution where all the scores are identical,

The quantity that is arrived at by taking the highest score minus the lowest score is referred to as the

The type of information on how scores are spread from the center of a distribution is obtained by

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.Which value is closest to the variance?

Consider the following hypothetical scores: 21,25,37,38,39,42,44,45.Which value is closest to the standard deviation?

Calculate the value of variance for the following sub-sample: 2,7,4,4,1,2,2,3,1,2,4,5

The box plot of a perfectly symmetrical distribution will have the box at the centre of the range as well as the median in the center of the box.

IQV is based on the ratio of the total number of differences in the distribution to the maximum number of possible differences within the same distribution.

Construct a box plot based on the following sub-sample: 2,7,4,4,1,2,2,3,1,2,4,5.Be sure to show the following quantities in your box plot: the minimum score,the maximum score,the range,interquartile range,and the median.

The quantities that are needed to calculate IQV are: the number of categories and the sum of all percentages in the distribution.

Calculate the range for the following sub-sample: 24,27,35,31,21,22,28,18,25,24,36,20.

SELECT ALL THAT APPLY. -Consider the following hypothetical data: Catholic = 32,Protestant = 25,Jewish = 4,Muslim = 8,Other = 29,and None = 2. Which of the following statements are true?

The simplest and most straightforward measure of variation is the range.

Which three quantities are needed to calculate the variance?

The What and the Why of Statistics

The Organization and Graphic Presentation of Data

Measures of Central Tendency

The Normal Distribution

Sampling and Sampling Distributions

Estimation

Testing Hypotheses

Bivariate Tables

The Chi-Square Test and Measures of Association

Analysis of Variance

Regression and Correlation

Filters