Question 1

A distribution can have more than one ____ but can have only one _____.​

Accepted Answer

A) median; mode or mean 
B) mean; mode or median 
C) mode; median or mean 
D) median or mode; mean 
A) median; mode or mean 
B) mean; mode or median 
C) mode; median or mean 
D) median or mode; mean C

Question 2

Draw the frequency polygon for the following distribution (there are 30 scores in the distribution). In addition, calculate the mean, median, and mode for the distribution.
48, 50, 53, 59, 59, 63, 63, 67, 67, 67, 72, 72, 72, 78, 78, 78, 78, 85, 85, 85, 85, 85, 90, 90, 90, 90, 95, 95, 98, 100
​

Accepted Answer

​   Mean = 76.57, Median = 78, Mode = 85

Question 3

During the past year, Cindy and Bobby each read 2 books, but Greg read 25, Jan read 12, and Marcia read 9. The median number of books read by these individuals was​

Accepted Answer

A) 2. 
B) 9. 
C) 10. 
D) 50. 
A) 2. 
B) 9. 
C) 10. 
D) 50. B

Question 4

A graphical representation of a frequency distribution in which vertical bars are centered above each category along the x-axis and are separated from each other by a space is a _____.​

Accepted Answer

A) histogram 
B) bar graph 
C) pie graph 
D) frequency polygon 
A) histogram 
B) bar graph 
C) pie graph 
D) frequency polygon

Question 5

Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The number of cups of coffee consumed is normally distributed.​

Accepted Answer

What proportion of students co

Question 6

Rich's first psychology exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 60 and a standard deviation of 6. Rich's percentile rank would be approximately​

Accepted Answer

A) 70%. 
B) 84%. 
C) 66%. 
D) cannot determine from the information given 
A) 70%. 
B) 84%. 
C) 66%. 
D) cannot determine from the information given

Question 7

Mode is to _____ and median is to _____.​

Accepted Answer

A) interval and ratio data only; nominal data only 
B) nominal data only; ordinal data only 
C) all types of data; ordinal, interval, and ratio data only 
D) none of the options is correct 
A) interval and ratio data only; nominal data only 
B) nominal data only; ordinal data only 
C) all types of data; ordinal, interval, and ratio data only 
D) none of the options is correct

Question 8

A categorical variable for which each value represents a discrete category is a _____ variable.​

Accepted Answer

A) qualitative 
B) quantitative 
C) continuous 
D) class interval 
A) qualitative 
B) quantitative 
C) continuous 
D) class interval

Question 9

Karen's first psychology exam score is ‑1 standard deviation from the mean in a normal distribution. The test has a mean of 75 and a standard deviation of 5. Karen's percentile rank would be​

Accepted Answer

A) 16%.​ 
B) 54%. 
C) 70%. 
D) cannot determine from the information given 
A) 16%.​ 
B) 54%. 
C) 70%. 
D) cannot determine from the information given

Question 10

Draw two distributions with the same standard deviations but different means.

Accepted Answer

The answer of Draw two distributions with the same standard...

Question 11

Tom, Tina, & Tori took a verbal aptitude test. The test was normally distributed with a mean of 70 and s = 15. Complete the following table.​

Accepted Answer

The answer of Tom, Tina, & Tori took a verbal...

Question 12

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. How many cups of coffee would an individual at the 25th percentile drink per day?​

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
A) 4 
B) 5 
C) 6 
D) 7

Question 13

Bar graphs are to _____ as frequency polygons are to _____.​

Accepted Answer

A) quantitative variables; qualitative variables 
B) qualitative variables; quantitative variables 
C) continuous data; discrete data 
D) quantitative variables and continuous data; qualitative variables and discrete data 
A) quantitative variables; qualitative variables 
B) qualitative variables; quantitative variables 
C) continuous data; discrete data 
D) quantitative variables and continuous data; qualitative variables and discrete data

Question 14

Calculate the mean, median, and mode for the following sample: 2, 2, 6, 9, 10, 11, 15, 17, 18, 20.​

Accepted Answer

The mean is 11, the

Question 15

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What is the percentile rank for an individual who consumed 8 cups of coffee per day?​

Accepted Answer

A) 97.72 
B) 2.28 
C) 47.72 
D) none of the options is correct 
A) 97.72 
B) 2.28 
C) 47.72 
D) none of the options is correct

Question 16

Imagine that distribution A contains the following scores: 3, 4, 5, 6, 7. Imagine that distribution B contains the following scores: 1, 3, 5, 8, 10. Distribution A has a _____ standard deviation and a _____ average deviation in comparison to distribution B.​

Accepted Answer

A) larger; larger 
B) smaller; smaller 
C) larger; smaller 
D) smaller; larger 
A) larger; larger 
B) smaller; smaller 
C) larger; smaller 
D) smaller; larger

Question 17

Arithmetic average is to _____ as score occurring with the greatest frequency is to _____.​

Accepted Answer

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

Question 18

Which of the following is a disadvantage of using the range as a measure of variation?​

Accepted Answer

A) It is limited because only two of the scores in the distribution are used to derive it. 
B) It is easily distorted by an unusually high or low score in a distribution. 
C) It can only be used with nominal data. 
D) It is limited because only two of the scores in the distribution are used to derive it, and it is easily distorted by an unusually high or low score in a distribution. 
A) It is limited because only two of the scores in the distribution are used to derive it. 
B) It is easily distorted by an unusually high or low score in a distribution. 
C) It can only be used with nominal data. 
D) It is limited because only two of the scores in the distribution are used to derive it, and it is easily distorted by an unusually high or low score in a distribution.

Question 19

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What proportion of faculty consumes an amount between 4 and 6 cups?​

Accepted Answer

A) 0.5468 
B) 0.4972 
C) 0.50 
D) none of the options is correct 
A) 0.5468 
B) 0.4972 
C) 0.50 
D) none of the options is correct

Question 20

A table in which the scores are grouped into intervals and listed along with the frequency of scores in each interval is a _____.​

Accepted Answer

A) bar graph 
B) histogram 
C) class interval frequency distribution 
D) class interval frequency polygon 
A) bar graph 
B) histogram 
C) class interval frequency distribution 
D) class interval frequency polygon

A distribution can have more than one but can have only one _.

Draw the frequency polygon for the following distribution (there are 30 scores in the distribution). In addition, calculate the mean, median, and mode for the distribution. 48, 50, 53, 59, 59, 63, 63, 67, 67, 67, 72, 72, 72, 78, 78, 78, 78, 85, 85, 85, 85, 85, 90, 90, 90, 90, 95, 95, 98, 100

During the past year, Cindy and Bobby each read 2 books, but Greg read 25, Jan read 12, and Marcia read 9. The median number of books read by these individuals was

A graphical representation of a frequency distribution in which vertical bars are centered above each category along the x-axis and are separated from each other by a space is a _____.

Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The number of cups of coffee consumed is normally distributed.

Rich's first psychology exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 60 and a standard deviation of 6. Rich's percentile rank would be approximately

Mode is to _ and median is to _.

A categorical variable for which each value represents a discrete category is a _____ variable.

Karen's first psychology exam score is ‑1 standard deviation from the mean in a normal distribution. The test has a mean of 75 and a standard deviation of 5. Karen's percentile rank would be

Draw two distributions with the same standard deviations but different means.

Tom, Tina, & Tori took a verbal aptitude test. The test was normally distributed with a mean of 70 and s = 15. Complete the following table.

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. How many cups of coffee would an individual at the 25th percentile drink per day?

Bar graphs are to _ as frequency polygons are to _.

Calculate the mean, median, and mode for the following sample: 2, 2, 6, 9, 10, 11, 15, 17, 18, 20.

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What is the percentile rank for an individual who consumed 8 cups of coffee per day?

Imagine that distribution A contains the following scores: 3, 4, 5, 6, 7. Imagine that distribution B contains the following scores: 1, 3, 5, 8, 10. Distribution A has a _ standard deviation and a _ average deviation in comparison to distribution B.

Arithmetic average is to _ as score occurring with the greatest frequency is to _.

Which of the following is a disadvantage of using the range as a measure of variation?

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What proportion of faculty consumes an amount between 4 and 6 cups?

A table in which the scores are grouped into intervals and listed along with the frequency of scores in each interval is a _____.

Thinking Like a Scientist

Getting Started

Defining Measuring and Manipulating Variables

Descriptive Methods

Correlational Methods and Statistics

Probability and Hypothesis Testing

Introduction to Inferential Statistics

Experimental Design and Analysis I

Experimental Design and Analysis II

Experimental Design and Analysis III

Experimental Design and Analysis Iv

Quasi Experimental and Single Case Designs

Nonparametric Inferential Statistics

APA Communication Guidelines

Filters

Exam 5: Data Organization and Descriptive Statistics

A distribution can have more than one ____ but can have only one _____.​

Draw the frequency polygon for the following distribution (there are 30 scores in the distribution). In addition, calculate the mean, median, and mode for the distribution. 48, 50, 53, 59, 59, 63, 63, 67, 67, 67, 72, 72, 72, 78, 78, 78, 78, 85, 85, 85, 85, 85, 90, 90, 90, 90, 95, 95, 98, 100 ​

During the past year, Cindy and Bobby each read 2 books, but Greg read 25, Jan read 12, and Marcia read 9. The median number of books read by these individuals was​

A graphical representation of a frequency distribution in which vertical bars are centered above each category along the x-axis and are separated from each other by a space is a _____.​

Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The number of cups of coffee consumed is normally distributed.​

Rich's first psychology exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 60 and a standard deviation of 6. Rich's percentile rank would be approximately​

Mode is to _____ and median is to _____.​

A categorical variable for which each value represents a discrete category is a _____ variable.​

Karen's first psychology exam score is ‑1 standard deviation from the mean in a normal distribution. The test has a mean of 75 and a standard deviation of 5. Karen's percentile rank would be​

Draw two distributions with the same standard deviations but different means.

Tom, Tina, & Tori took a verbal aptitude test. The test was normally distributed with a mean of 70 and s = 15. Complete the following table.​

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. How many cups of coffee would an individual at the 25th percentile drink per day?​

Bar graphs are to _____ as frequency polygons are to _____.​

Calculate the mean, median, and mode for the following sample: 2, 2, 6, 9, 10, 11, 15, 17, 18, 20.​

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What is the percentile rank for an individual who consumed 8 cups of coffee per day?​

Imagine that distribution A contains the following scores: 3, 4, 5, 6, 7. Imagine that distribution B contains the following scores: 1, 3, 5, 8, 10. Distribution A has a _____ standard deviation and a _____ average deviation in comparison to distribution B.​

Arithmetic average is to _____ as score occurring with the greatest frequency is to _____.​

Which of the following is a disadvantage of using the range as a measure of variation?​

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What proportion of faculty consumes an amount between 4 and 6 cups?​

A table in which the scores are grouped into intervals and listed along with the frequency of scores in each interval is a _____.​

Thinking Like a Scientist

Getting Started

Defining Measuring and Manipulating Variables

Descriptive Methods

Correlational Methods and Statistics

Probability and Hypothesis Testing

Introduction to Inferential Statistics

Experimental Design and Analysis I

Experimental Design and Analysis II

Experimental Design and Analysis III

Experimental Design and Analysis Iv

Quasi Experimental and Single Case Designs

Nonparametric Inferential Statistics

APA Communication Guidelines

Filters

A distribution can have more than one but can have only one _.

Draw the frequency polygon for the following distribution (there are 30 scores in the distribution). In addition, calculate the mean, median, and mode for the distribution. 48, 50, 53, 59, 59, 63, 63, 67, 67, 67, 72, 72, 72, 78, 78, 78, 78, 85, 85, 85, 85, 85, 90, 90, 90, 90, 95, 95, 98, 100

During the past year, Cindy and Bobby each read 2 books, but Greg read 25, Jan read 12, and Marcia read 9. The median number of books read by these individuals was

A graphical representation of a frequency distribution in which vertical bars are centered above each category along the x-axis and are separated from each other by a space is a _____.

Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The number of cups of coffee consumed is normally distributed.

Rich's first psychology exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 60 and a standard deviation of 6. Rich's percentile rank would be approximately

Mode is to _ and median is to _.

A categorical variable for which each value represents a discrete category is a _____ variable.

Karen's first psychology exam score is ‑1 standard deviation from the mean in a normal distribution. The test has a mean of 75 and a standard deviation of 5. Karen's percentile rank would be

Tom, Tina, & Tori took a verbal aptitude test. The test was normally distributed with a mean of 70 and s = 15. Complete the following table.

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. How many cups of coffee would an individual at the 25th percentile drink per day?

Bar graphs are to _ as frequency polygons are to _.

Calculate the mean, median, and mode for the following sample: 2, 2, 6, 9, 10, 11, 15, 17, 18, 20.

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What is the percentile rank for an individual who consumed 8 cups of coffee per day?

Imagine that distribution A contains the following scores: 3, 4, 5, 6, 7. Imagine that distribution B contains the following scores: 1, 3, 5, 8, 10. Distribution A has a _ standard deviation and a _ average deviation in comparison to distribution B.

Arithmetic average is to _ as score occurring with the greatest frequency is to _.

Which of the following is a disadvantage of using the range as a measure of variation?

Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What proportion of faculty consumes an amount between 4 and 6 cups?

A table in which the scores are grouped into intervals and listed along with the frequency of scores in each interval is a _____.