Histogram Spread and Center

• The minimum is 39

• The lower quartile is 44

• The median is 45

• The maximum is 51

• bimodal

• uniform

• multiple outlier

• skewed to the right

Which statement is true about the center of distribution?

• The center is best described using the mean, because the distribution is skewed.

• The center is best described using the median, because the distribution is skewed.

• The center is best described by the mean and median, because the distribution is symmetric.

• The center is best described by the outlier, because the distribution is symmetric.

Which of the following dot plots can be used to create the histogram?

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• 
• 
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Compare the centers and spreads. 

•  Math has a higher median (center) and a wider spread.

•  Math has a higher median (center) and a smaller spread.

• Math has a lower median (center) and a smaller spread.

• Math has a lower median (center) and a wider spread.

The double dot plots show the average wait times in minutes for two popular rides at an amusement park. Compare the measures of center and variation, which ride typically has a longer wait time?

• No inference can be made from the graph.

• Topsy Turvy

• The wait times are the same for both rides.

• Rocket Blast

The dotplots compare the number of hours a group of teenagers spent on two activities.

Select the answer that is NOT true.

• The data for exercise has a lower center than the data for video games.

• Both dotplots appear to be skewed right.

• Both dotplots appear to have outliers.

• The time spent on video games had a greater range than the time spent on exercise.

Compare the two dotplots. Which statement is true?

• Boys and girls had the same spread/range in their times.

• Boys generally had longer times than girls.

• The center of the boys' times is lower than the center for the girls times.

• Both dotplots are skewed right.

Compare the two histograms, select the true statement.

• The histogram on the left has a larger standard deviation than the histogram on the right.

• The histograms appear to have roughly the same center and symmetric distributions.

• The histogram on the right has a larger spread than the histogram on the left.

• The IQR for the two histograms will be equal.

Which restaurant has a smaller IQR for wait time?

• Lucy's Steakhouse

• Gary's Grill

• They are the same