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WGU C955 - Module 4: Descriptive Statistics for a Single Variable
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WGU C955 - Module 4: Descriptive Statistics for a Single Variable
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WGU C955 - Module 4: DescriptiveStatistics for a Single Variable
If 200 people are surveyed, how many claim to have had no exercise?
{{ Pie chart reflecting the average number of hours exercised per week. No
exercise 36%, 1 - 2 hours 28%, 3 - 4 hours 12%, 4 - 5 hours 10%, 5 - 6 hours
8%, 6 - 7 hours 4%, more than 7 hours 2%. }}
a 18
b 36
c 72
d Cannot determine - -72
-Determine the range for the following data set.
{1,24,26,28,32,36,38,40,65}
a 1 to 65
b 64
c 65
d Cannot determine - -64
-It is important to start the frequency scale on a bar chart at which value to
be certain not to overemphasize a difference in values?
a Zero
b The lowest measured value
c The smallest frequency
d As long as the scale is even, it doesn't matter where you start it. - -Zero
-If 80 people exercised 4 - 5 hours per week, how many people were
surveyed?
{{ Pie chart reflecting the average number of hours exercised per week. No
exercise 36%, 1 - 2 hours 28%, 3 - 4 hours 12%, 4 - 5 hours 10%, 5 - 6 hours
8%, 6 - 7 hours 4%, more than 7 hours 2%. }}
a 80
b 800
c 400
d 50 - -800
-You are a professional trainer at a local sports academy. You ask your
athletes to determine the number of grams of protein they consume for a
, particular meal. Which of the following would be the best choice to illustrate
the shape of the data you collect?
a Bar chart
b Pie chart
c Box plot
d None of the above - -Box plot
-What is the most significant difference between histograms and bar charts?
a The number of bars used
b The use of labels on the axes
c The type of data depicted in the graph
d The coloring used for each bar - -The type of data depicted in the graph
-Of the following sets of data, which would you assume should have the
greatest range?
a Age when a baby gets their first tooth
b Age of first-year business students
c Age of death
d Age of high school graduate - -Age of death
-Determine any outliers in the following data set.
{1,24,26,28,32,36,38,40,65}
a1
b 65
c A and B
d None - -A and B
-Determine the interquartile range ( IQR ) for the following set of diagnostic
test scores. {60,47,65,85,81,77,70,56,47,84,75}
a 25
b 57
c 68
d 80 - -25
-Stem plots display which type of data?
a Quantitative
b Categorical
c Neither Quantitative nor categorical
d Quantitative and categorical - -Quantitative
-Determine the median for the following set of diagnostic test scores.
{60,47,65,85,81,77,70,56,47,84,75}
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