What is the range of the following data set?
68 60 68 64 84 48 60 80 80 58 62 52
a) 26
b) 28
c) 32
d) 36
36
If both variables are categorical, what is the best method to display the data?
,a) Two-way frequency table
b) Scatterplot
c) Side-by-side box plot
d) Histogram
a. Two-way frequency table
If both variables are categorical, a two-way frequency table is used to display
the data.
Determine the mean for the following set of data values. {60,47,65,85,81,77,70,56,47,84,75}
a 67
b 70
c 47
d 68
68
Determine the median for the following set of diagnostic test scores.
{60,47,65,85,81,77,70,56,47,84,75}
a 67
b 70
c 47
d 67.9
, 70
The bitrate of audio files in a sample group of files ranged from 160 kilobytes per second
(Kbps) to 256 kilobytes per second (Kbps). What percentage of the audio files will fall
within 2 standard deviations of the mean? Assume the data is normally distributed.
a 34%
b 68%
c 95%
d 99.7%
95%
What type of data is presented in this chart?
a Categorical
b Quantitative
c Numerical
d Both b and c
Categorical
, Using the dot plot below, determine how many athletes on the cross country team weigh
between 116 and 140 pounds.
{{ Dot plot with a distribution of cross country athlete's weight; there are six dots
between 116 and 140. }}
a) 10
b) 8
c) 6
d) Cannot determine.
6
In the side-by-side box plot, first-quarter sales represent what type of
variable?
a) Response variable
b) Categorical variable
c) Explanatory variable
d) Qualitative variable
Give this one a try later!
a) Response variable
The response variable is a quantitative variable. First-quarter sales is a
quantitative variable.
68 60 68 64 84 48 60 80 80 58 62 52
a) 26
b) 28
c) 32
d) 36
36
If both variables are categorical, what is the best method to display the data?
,a) Two-way frequency table
b) Scatterplot
c) Side-by-side box plot
d) Histogram
a. Two-way frequency table
If both variables are categorical, a two-way frequency table is used to display
the data.
Determine the mean for the following set of data values. {60,47,65,85,81,77,70,56,47,84,75}
a 67
b 70
c 47
d 68
68
Determine the median for the following set of diagnostic test scores.
{60,47,65,85,81,77,70,56,47,84,75}
a 67
b 70
c 47
d 67.9
, 70
The bitrate of audio files in a sample group of files ranged from 160 kilobytes per second
(Kbps) to 256 kilobytes per second (Kbps). What percentage of the audio files will fall
within 2 standard deviations of the mean? Assume the data is normally distributed.
a 34%
b 68%
c 95%
d 99.7%
95%
What type of data is presented in this chart?
a Categorical
b Quantitative
c Numerical
d Both b and c
Categorical
, Using the dot plot below, determine how many athletes on the cross country team weigh
between 116 and 140 pounds.
{{ Dot plot with a distribution of cross country athlete's weight; there are six dots
between 116 and 140. }}
a) 10
b) 8
c) 6
d) Cannot determine.
6
In the side-by-side box plot, first-quarter sales represent what type of
variable?
a) Response variable
b) Categorical variable
c) Explanatory variable
d) Qualitative variable
Give this one a try later!
a) Response variable
The response variable is a quantitative variable. First-quarter sales is a
quantitative variable.
