Stat Exam Questions with
Complete Solutions
Denning [Date] [Course title]
, distribution of a sample - Correct Answers The _____ organizes data by recording all the values observed
in a sample as well as how many times each value was observed.
What two-step process is used to examine distributions? - Correct Answers see the data and summarize
it
All methods used for visualizing distributions are based on which of the following? - Correct Answers
Make a mark that indicates how many times each value occurred in the data set.
n a histogram, observations are grouped into intervals called ____. - Correct Answers bins
Changing the width of bins in a histogram _______. - Correct Answers changes the shape of the
histogram.
"Relative frequency" is the same as which of the following? - Correct Answers proportion
A stemplot is often useful in which of the following cases? - Correct Answers When technology is not
available and the data set is not large
When examining a distribution of numerical data, which of the following is not a feature that needs to b
- Correct Answers each individual value
When examining the shape of a distribution of numerical data, which of the following is not one of the
three basic characteristics of adistribution's shape? - Correct Answers How many numbers are in the
data set
distribution of a variable in which most of the values are relatively small but that also has a few very
large values is called - Correct Answers right-skewed
If a sample of people were asked how many hours of TV they watched in a typical week, what shape
would the data distribution be expected to have? - Correct Answers right-skewed
Complete Solutions
Denning [Date] [Course title]
, distribution of a sample - Correct Answers The _____ organizes data by recording all the values observed
in a sample as well as how many times each value was observed.
What two-step process is used to examine distributions? - Correct Answers see the data and summarize
it
All methods used for visualizing distributions are based on which of the following? - Correct Answers
Make a mark that indicates how many times each value occurred in the data set.
n a histogram, observations are grouped into intervals called ____. - Correct Answers bins
Changing the width of bins in a histogram _______. - Correct Answers changes the shape of the
histogram.
"Relative frequency" is the same as which of the following? - Correct Answers proportion
A stemplot is often useful in which of the following cases? - Correct Answers When technology is not
available and the data set is not large
When examining a distribution of numerical data, which of the following is not a feature that needs to b
- Correct Answers each individual value
When examining the shape of a distribution of numerical data, which of the following is not one of the
three basic characteristics of adistribution's shape? - Correct Answers How many numbers are in the
data set
distribution of a variable in which most of the values are relatively small but that also has a few very
large values is called - Correct Answers right-skewed
If a sample of people were asked how many hours of TV they watched in a typical week, what shape
would the data distribution be expected to have? - Correct Answers right-skewed
