Question 1

Filling in the blanks in this frequency distribution table, ______ of this sample preferred 'Yellow'; this represents ______ of the sample.

Accepted Answer

A)  70; 32.9% 
B)  70; 59.6% 
C)  143; 67.1% 
D)  213; 32.9% 
A)  70; 32.9% 
B)  70; 59.6% 
C)  143; 67.1% 
D)  213; 32.9%

Question 2

Filling in the blanks in this frequency distribution table, ______ of this sample owned 1 phone; this represents ______ of the sample.

Accepted Answer

A)  4; 20.0% 
B)  4; 55.0% 
C)  16; 80.0% 
D)  20; 20.0% 
A)  4; 20.0% 
B)  4; 55.0% 
C)  16; 80.0% 
D)  20; 20.0%

Question 3

Which of these is a reason why researchers examine the data they have collected?

Accepted Answer

A)  to detect outliers 
B)  to calculate measures of central tendency and variability 
C)  to test their research hypotheses 
D)  to draw inferences about populations 
A)  to detect outliers 
B)  to calculate measures of central tendency and variability 
C)  to test their research hypotheses 
D)  to draw inferences about populations

Question 4

Filling in the blanks in this frequency distribution table, ______ of this sample are 'NOT sure' of their plans after finishing college; this represents ______ of the sample.

Accepted Answer

A)  20; 23.2% 
B)  23; 26.8% 
C)  42; 48.8% 
D)  Cannot be determined with information provided 
A)  20; 23.2% 
B)  23; 26.8% 
C)  42; 48.8% 
D)  Cannot be determined with information provided

Question 5

Filling in the blanks in this frequency distribution table, the cumulative percent ('Cum %') associated with a rating of 'Very good' is ______.

Accepted Answer

A)  22.4% 
B)  59.5% 
C)  63.4% 
D)  85.8% 
A)  22.4% 
B)  59.5% 
C)  63.4% 
D)  85.8%

Question 6

When creating a grouped frequency distribution table, the number of intervals depends on ______.

Accepted Answer

A)  the size of the population 
B)  the difference between the sample and the population 
C)  the distribution of data in the sample 
D)  arbitrary cutpoints 
A)  the size of the population 
B)  the difference between the sample and the population 
C)  the distribution of data in the sample 
D)  arbitrary cutpoints

Question 7

Filling in the blanks in this frequency distribution table, ______ of this sample live in the 925 area code; this represents ______ of the sample.

Accepted Answer

A)  10; .15% 
B)  15; 10.0% 
C)  10; 14.5% 
D)  Cannot be determined with information provided 
A)  10; .15% 
B)  15; 10.0% 
C)  10; 14.5% 
D)  Cannot be determined with information provided

Question 8

An instructor determines the number of students looking at Facebook or Twitter pages during five of her lectures. She would use a ______ to illustrate this data because this variable is measured at the ______ scale of measurement.

Accepted Answer

A)  pie graph; interval 
B)  frequency polygon; nominal 
C)  histogram; ratio 
D)  bar chart; ordinal 
A)  pie graph; interval 
B)  frequency polygon; nominal 
C)  histogram; ratio 
D)  bar chart; ordinal

Question 9

Filling in the blanks in this frequency distribution table, ______ of the sample are married; this represents ______ of the sample.

Accepted Answer

A)  54; 46.6% 
B)  62; 53.8% 
C)  116; 63.8% 
D)  54; 63.8% 
A)  54; 46.6% 
B)  62; 53.8% 
C)  116; 63.8% 
D)  54; 63.8%

Question 10

A university asks students to indicate their level of satisfaction with their education (from low to high). They find the large majority of students are 'very satisfied' with their education, with relatively few students either 'very unsatisfied' or 'satisfied'. Which of these BEST describes this distribution?   A   B   C   D

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
A)  A 
B)  B 
C)  C 
D)  D

Question 11

You would use a ______ to illustrate the data in this frequency distribution table.

Accepted Answer

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

Question 12

For the set of data below, pick the choice that BEST describes the shape of the distribution: 3, 7, 7, 12, 6, 7, 4, 7, 9, 7

Accepted Answer

A)  normal 
B)  bimodal 
C)  flat 
D)  peaked 
A)  normal 
B)  bimodal 
C)  flat 
D)  peaked

Question 13

You would use the word ______ in describing a distribution that is ______

Accepted Answer

A)  bimodal; skewed 
B)  skewed; symmetrical 
C)  normal; asymmetrical 
D)  skewed; asymmetrical 
A)  bimodal; skewed 
B)  skewed; symmetrical 
C)  normal; asymmetrical 
D)  skewed; asymmetrical

Question 14

When constructing a grouped frequency distribution table, you do NOT want many of the intervals to have a frequency (f) of zero.

Accepted Answer

A) True 
 B)False

Question 15

Filling in the blanks in this frequency distribution table, the percentage ('%') for 10th grade is ______; the cumulative percent ('Cum %') associated with 10th grade is ______.

Accepted Answer

A)  15.8%; 78.9% 
B)  18.4%; 78.9% 
C)  34.2%; 94.7% 
D)  78.9%; 18.4% 
A)  15.8%; 78.9% 
B)  18.4%; 78.9% 
C)  34.2%; 94.7% 
D)  78.9%; 18.4%

Question 16

A researcher asks a sample of people about their attitudes toward same-sex marriage and concludes people are either strongly in favor of it or strongly opposed, with relatively few people either unsure or indifferent. She reaches this conclusion because the shape of the distribution is ______.

Accepted Answer

A)  normal 
B)  peaked 
C)  skewed 
D)  bimodal 
A)  normal 
B)  peaked 
C)  skewed 
D)  bimodal

Question 17

After grading an examination, an instructor realizes the exam was much harder than he planned. He realizes this because the shape of the distribution of exam scores is ______.

Accepted Answer

A)  positively skewed 
B)  negatively skewed 
C)  symmetrical 
D)  flat 
A)  positively skewed 
B)  negatively skewed 
C)  symmetrical 
D)  flat

Question 18

The variability of a distribution refers to the amount of what in a distribution of data for a variable?

Accepted Answer

A)  skewness 
B)  symmetry 
C)  variability 
D)  modality 
A)  skewness 
B)  symmetry 
C)  variability 
D)  modality

Question 19

Filling in the blanks in this frequency distribution table, the cumulative percent ('Cum %') associated with a score of 31-40 is ______.

Accepted Answer

A)  29.8% 
B)  48.9% 
C)  34.0% 
D)  63.8% 
A)  29.8% 
B)  48.9% 
C)  34.0% 
D)  63.8%

Question 20

The intervals created for a grouped frequency distribution table should represent the nature of the data as ______ as possible.

Accepted Answer

A)  redundantly 
B)  accurately 
C)  arbitrarily 
D)  simplistically 
A)  redundantly 
B)  accurately 
C)  arbitrarily 
D)  simplistically

Filling in the blanks in this frequency distribution table, of this sample preferred 'Yellow'; this represents of the sample.

Filling in the blanks in this frequency distribution table, of this sample owned 1 phone; this represents of the sample.

Which of these is a reason why researchers examine the data they have collected?

Filling in the blanks in this frequency distribution table, of this sample are 'NOT sure' of their plans after finishing college; this represents of the sample.

Filling in the blanks in this frequency distribution table, the cumulative percent ('Cum %') associated with a rating of 'Very good' is ______.

When creating a grouped frequency distribution table, the number of intervals depends on ______.

Filling in the blanks in this frequency distribution table, of this sample live in the 925 area code; this represents of the sample.

An instructor determines the number of students looking at Facebook or Twitter pages during five of her lectures. She would use a to illustrate this data because this variable is measured at the scale of measurement.

Filling in the blanks in this frequency distribution table, of the sample are married; this represents of the sample.

You would use a ______ to illustrate the data in this frequency distribution table.

For the set of data below, pick the choice that BEST describes the shape of the distribution: 3, 7, 7, 12, 6, 7, 4, 7, 9, 7

You would use the word in describing a distribution that is

When constructing a grouped frequency distribution table, you do NOT want many of the intervals to have a frequency (f) of zero.

Filling in the blanks in this frequency distribution table, the percentage ('%') for 10th grade is ; the cumulative percent ('Cum %') associated with 10th grade is .

A researcher asks a sample of people about their attitudes toward same-sex marriage and concludes people are either strongly in favor of it or strongly opposed, with relatively few people either unsure or indifferent. She reaches this conclusion because the shape of the distribution is ______.

After grading an examination, an instructor realizes the exam was much harder than he planned. He realizes this because the shape of the distribution of exam scores is ______.

The variability of a distribution refers to the amount of what in a distribution of data for a variable?

Filling in the blanks in this frequency distribution table, the cumulative percent ('Cum %') associated with a score of 31-40 is ______.

The intervals created for a grouped frequency distribution table should represent the nature of the data as ______ as possible.

Introduction to Statistics

Measures of Central Tendency

Measures of Variability

Normal Distributions

Probability and Hypothesis Testing

Testing One Sample Mean

Estimating the Mean of a Population

Testing the Difference Between Two Means

Errors in Hypothesis Testing, Statistical Power, and Effect Size

One-Way Analysis of Variance Anova

Two-Way Analysis of Variance Anova

Correlation

Linear Regression and Multiple Correlation

Chi-Square

Filters

Exam 2: Examining Data: Tables and Figures

Filling in the blanks in this frequency distribution table, ______ of this sample preferred 'Yellow'; this represents ______ of the sample.

Filling in the blanks in this frequency distribution table, ______ of this sample owned 1 phone; this represents ______ of the sample.

Which of these is a reason why researchers examine the data they have collected?

Filling in the blanks in this frequency distribution table, ______ of this sample are 'NOT sure' of their plans after finishing college; this represents ______ of the sample.

Filling in the blanks in this frequency distribution table, the cumulative percent ('Cum %') associated with a rating of 'Very good' is ______.

When creating a grouped frequency distribution table, the number of intervals depends on ______.

Filling in the blanks in this frequency distribution table, ______ of this sample live in the 925 area code; this represents ______ of the sample.

An instructor determines the number of students looking at Facebook or Twitter pages during five of her lectures. She would use a ______ to illustrate this data because this variable is measured at the ______ scale of measurement.

Filling in the blanks in this frequency distribution table, ______ of the sample are married; this represents ______ of the sample.

You would use a ______ to illustrate the data in this frequency distribution table.

For the set of data below, pick the choice that BEST describes the shape of the distribution: 3, 7, 7, 12, 6, 7, 4, 7, 9, 7

You would use the word ______ in describing a distribution that is ______

When constructing a grouped frequency distribution table, you do NOT want many of the intervals to have a frequency (f) of zero.

Filling in the blanks in this frequency distribution table, the percentage ('%') for 10th grade is ______; the cumulative percent ('Cum %') associated with 10th grade is ______.

A researcher asks a sample of people about their attitudes toward same-sex marriage and concludes people are either strongly in favor of it or strongly opposed, with relatively few people either unsure or indifferent. She reaches this conclusion because the shape of the distribution is ______.

After grading an examination, an instructor realizes the exam was much harder than he planned. He realizes this because the shape of the distribution of exam scores is ______.

The variability of a distribution refers to the amount of what in a distribution of data for a variable?

Filling in the blanks in this frequency distribution table, the cumulative percent ('Cum %') associated with a score of 31-40 is ______.

The intervals created for a grouped frequency distribution table should represent the nature of the data as ______ as possible.

Introduction to Statistics

Measures of Central Tendency

Measures of Variability

Normal Distributions

Probability and Hypothesis Testing

Testing One Sample Mean

Estimating the Mean of a Population

Testing the Difference Between Two Means

Errors in Hypothesis Testing, Statistical Power, and Effect Size

One-Way Analysis of Variance Anova

Two-Way Analysis of Variance Anova

Correlation

Linear Regression and Multiple Correlation

Chi-Square

Filters

Filling in the blanks in this frequency distribution table, of this sample preferred 'Yellow'; this represents of the sample.

Filling in the blanks in this frequency distribution table, of this sample owned 1 phone; this represents of the sample.

Filling in the blanks in this frequency distribution table, of this sample are 'NOT sure' of their plans after finishing college; this represents of the sample.

Filling in the blanks in this frequency distribution table, of this sample live in the 925 area code; this represents of the sample.

An instructor determines the number of students looking at Facebook or Twitter pages during five of her lectures. She would use a to illustrate this data because this variable is measured at the scale of measurement.

Filling in the blanks in this frequency distribution table, of the sample are married; this represents of the sample.

You would use the word in describing a distribution that is

Filling in the blanks in this frequency distribution table, the percentage ('%') for 10th grade is ; the cumulative percent ('Cum %') associated with 10th grade is .