Question 1

If a score in a distribution changes in numerical value, it will necessarily change the value of.

Accepted Answer

A) the median 
B) the mean 
C) the mode 
D) all measures of central tendency 
A) the median 
B) the mean 
C) the mode 
D) all measures of central tendency

Question 2

The value in a distribution such that an equal number of scores are above it and below it is called the.

Accepted Answer

A) mean 
B) median 
C) mode 
D) correlation coefficient 
A) mean 
B) median 
C) mode 
D) correlation coefficient

Question 3

For the three scores 75, 80, 85, which of the following is true?

Accepted Answer

A)  $\bar { X } = 81$ 
B)  $\sum ( X - \bar { X } ) = 5.0$ 
C)  $\sum ( X - \bar { X } ) ^ { 2 } = 50.0$ 
D)  All the above 
A)  $\bar { X } = 81$ 
B)  $\sum ( X - \bar { X } ) = 5.0$ 
C)  $\sum ( X - \bar { X } ) ^ { 2 } = 50.0$ 
D)  All the above

Question 4

When calculating the mean, the symbol X represents the.

Accepted Answer

A) score of a single subject 
B) size of the class interval 
C) median 
D) mean 
A) score of a single subject 
B) size of the class interval 
C) median 
D) mean

Question 5

If scores are measured with an interval or ratio scale, then the preferred measure of central tendency for the scores is the.

Accepted Answer

A) mode 
B) median 
C) mean 
D) percentile 
A) mode 
B) median 
C) mean 
D) percentile

Question 6

The set of scores 50, 51, 54, 55, 57, 59, 60, 62, 64.

Accepted Answer

A) is multimodal 
B) is unimodal 
C) is bimodal 
D) has no mode 
A) is multimodal 
B) is unimodal 
C) is bimodal 
D) has no mode

Question 7

All the scores in a distribution are used to obtain.

Accepted Answer

A) the mode 
B) the median 
C) the mean 
D) all measures of central tendency 
A) the mode 
B) the median 
C) the mean 
D) all measures of central tendency

Question 8

The median is represented by the symbol.

Accepted Answer

A) Mn 
B) Mdn 
C) Me 
D) M 
A) Mn 
B) Mdn 
C) Me 
D) M

Question 9

Skewness in a frequency distribution can be determined by comparing.

Accepted Answer

A) the mode and median 
B) the median and mean 
C) the mean and mode 
D) any two of the three measures of central tendency 
A) the mode and median 
B) the median and mean 
C) the mean and mode 
D) any two of the three measures of central tendency

Question 10

For the set of scores 10, 20, 30, 40, 50 the median is.

Accepted Answer

A) 20 
B) 25 
C) 30 
D) 35 
A) 20 
B) 25 
C) 30 
D) 35

Question 11

In a distribution in which each score occurs only once, there will be no.

Accepted Answer

A) mode 
B) median 
C) mean 
D) appropriate measure of central tendency 
A) mode 
B) median 
C) mean 
D) appropriate measure of central tendency

Question 12

The value that corresponds to the 50th percentile point in a distribution of scores is the .

Accepted Answer

A) mode 
B) median 
C) arithmetic mean 
D) sample mean 
A) mode 
B) median 
C) arithmetic mean 
D) sample mean

Question 13

Skewness in a distribution most affects the.

Accepted Answer

A) median 
B) mean 
C) mode 
D) mean, mode and median equally 
A) median 
B) mean 
C) mode 
D) mean, mode and median equally

Question 14

The symbol represents the.

Accepted Answer

A) percentile $\bar { X }$ 
B) class interval 
C) median 
D) sample mean 
A) percentile $\bar { X }$ 
B) class interval 
C) median 
D) sample mean

Question 15

The symbol μ represents the.

Accepted Answer

A) mean of a sample 
B) mean of a population 
C) standard deviation of a sample 
D) standard deviation of a population 
A) mean of a sample 
B) mean of a population 
C) standard deviation of a sample 
D) standard deviation of a population

If a score in a distribution changes in numerical value, it will necessarily change the value of.

The value in a distribution such that an equal number of scores are above it and below it is called the.

For the three scores 75, 80, 85, which of the following is true?

When calculating the mean, the symbol X represents the.

If scores are measured with an interval or ratio scale, then the preferred measure of central tendency for the scores is the.

The set of scores 50, 51, 54, 55, 57, 59, 60, 62, 64.

All the scores in a distribution are used to obtain.

The median is represented by the symbol.

Skewness in a frequency distribution can be determined by comparing.

For the set of scores 10, 20, 30, 40, 50 the median is.

In a distribution in which each score occurs only once, there will be no.

The value that corresponds to the 50th percentile point in a distribution of scores is the .

Skewness in a distribution most affects the.

The symbol represents the.

The symbol μ represents the.

Making Sense of Variability: an Introduction to Statistics

Statistics in the Context of Scientific Research

Looking at Data: Frequency Distributions and Graphs

Looking at Data: Measures of Variability

The Normal Distribution, Probability, and Standard Scores

Understanding Data: Using Statistics for Inference and Estimation

Is There Really a Difference Introduction to Statistical Hypothesis Testing

The Basics of Experimentation and Testing for a Difference Between Means

One-Factor Between-Subjects Analysis of Variance

Two-Factor Between-Subjects Analysis of Variance

One-Factor Within-Subjects Analysis of Variance

Correlation: Understanding Covariation

Regression Analysis: Predicting Linear Relationships

Nonparametric Tests

Filters

Exam 4: Looking at Data: Measures of Central Tendency

If a score in a distribution changes in numerical value, it will necessarily change the value of.

The value in a distribution such that an equal number of scores are above it and below it is called the.

For the three scores 75, 80, 85, which of the following is true?

When calculating the mean, the symbol X represents the.

If scores are measured with an interval or ratio scale, then the preferred measure of central tendency for the scores is the.

The set of scores 50, 51, 54, 55, 57, 59, 60, 62, 64.

All the scores in a distribution are used to obtain.

The median is represented by the symbol.

Skewness in a frequency distribution can be determined by comparing.

For the set of scores 10, 20, 30, 40, 50 the median is.

In a distribution in which each score occurs only once, there will be no.

The value that corresponds to the 50th percentile point in a distribution of scores is the .

Skewness in a distribution most affects the.

The symbol represents the.

The symbol μ represents the.

Making Sense of Variability: an Introduction to Statistics

Statistics in the Context of Scientific Research

Looking at Data: Frequency Distributions and Graphs

Looking at Data: Measures of Variability

The Normal Distribution, Probability, and Standard Scores

Understanding Data: Using Statistics for Inference and Estimation

Is There Really a Difference Introduction to Statistical Hypothesis Testing

The Basics of Experimentation and Testing for a Difference Between Means

One-Factor Between-Subjects Analysis of Variance

Two-Factor Between-Subjects Analysis of Variance

One-Factor Within-Subjects Analysis of Variance

Correlation: Understanding Covariation

Regression Analysis: Predicting Linear Relationships

Nonparametric Tests

Filters