QUESTION 1
Find the minimum, maximum, range, mean, and median for the data set.

37, 43, 54, 83, 102, 117, 160, 208

minimum: 37

maximum: 208

range: 245

mean: 100.5

median: 92.5

minimum: 37

maximum: 208

range: 171

mean: 100.5

median: 92.5

minimum: 37

maximum: 208

range: 171

mean: 92.5

median: 100.5

minimum: 208

maximum: 37

range: 171

mean: 100.5

median: 92.5

5 points

QUESTION 2
What is the mode of this data set?

80, 95, 100, 85, 95, 110, 90, 112, 110, 96, 95, 100

5 points

QUESTION 3
What is the range of this data set?

64Â°, 72Â°, 74Â°, 68Â°, 70Â°, 68Â°, 68Â°, 75Â°, and 44Â°

5 points

QUESTION 4
Mark recorded the number of minutes each person in his neighborhood played sports in one week. He then organized the information in a frequency table.

Time Spent Playing Sports Each Week
Time (minutes)
Frequency
0â€“29
4
30â€“59
6
60â€“89
2

Which histogram correctly displays this information?

5 points

QUESTION 5
Find the interquartile range of the data.

5 points

QUESTION 6
What type of correlation is shown in the scatter plot?

positive correlation

negative correlation

no correlation

5 points

QUESTION 7
State whether each extreme in the data set is an outlier.

The lower extreme is an outlier, but the upper extreme is not.

The upper extreme is an outlier, but the lower extreme is not.

Both extremes are outliers.

Neither extreme is an outlier.

5 points

QUESTION 8
How is the data in the line plot skewed?

skewed middle

skewed right

skewed left

not skewed

5 points

QUESTION 9
Henry took a survey to find out what the favorite brand of hot dog was among people in the city. For his survey, he randomly chose people exiting a children’s play. Which statement is most likely true?

The survey could be biased because the people surveyed were chosen randomly.

The survey could be biased because only people leaving a children’s play were surveyed.

The survey should be unbiased because the people were chosen randomly.

The survey should be unbiased because the people leaving the play were representative of all people in the city.

5 points

QUESTION 10
The owner of a bicycle repair shop wants to know how his customers feel about the service they receive, so he asks each customer to fill out a survey about their experience.

Which type of sampling strategy is the owner using?

simple random

stratified random

systematic

5 points

QUESTION 11
What could cause the graph to be misleading?

Axis titles are misleading.

Bars are too wide.

Bars are too far apart.

Vertical axis scale does not begin at 0.

5 points

QUESTION 12
A ____________ is a graph that uses adjacent rectangles to display frequencies, or relative frequencies, of quantitative data values.

mean absolute deviation

convenience sample

histogram

5 points

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