standard_description: Informally assess the degree of visual overlap of two numerical data distributions with similar variabilities, measuring the difference between the centers by expressing it as a multiple of a measure of variability. For example, the mean height of players on the basketball team is 10 cm greater than the mean height of players on the soccer team, about twice the variability (mean absolute deviation) on either team; on a dot plot, the separation between the two distributions of heights is noticeable.
problem_activity: Problem 1
Below is a dot plot of data showing the amount of time it takes students in Mr. S’s class to get to school.
Draw a line separating the upper half of the data and the lower half of the data.
Circle the median value.
Draw a line showing half of the upper half of the data and another showing half of the lower half of the data.
Estimate your box plot around the lines drawn in the dot plot.
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Problem 2
The plot below shows the results of a survey of households about the number of dogs they have.
Identify the following statements as true or false. Explain your reasoning in each case.
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The maximum number of dogs per house is 8.
At least
$${ \frac{1}{2} }$$
of the houses have 2 or more dogs.
All of the houses have dogs.
Half of the houses surveyed have between 2 and 4 dogs.
Most of the houses surveyed have no dogs.


aligns: no