Twenty students timed how long each of them took to solve a puzzle. Here is a dot plot of their solution times.
Predict which measure of center —the mean or the median—will be larger.
Twenty students timed how long each of them took to solve a puzzle. Here is a dot plot of their solution times.
Calculate the mean.
Twenty students timed how long each of them took to solve a puzzle. Here is a dot plot of their solution times.
Calculate the median.
Twenty students timed how long each of them took to solve a puzzle. Here is a dot plot of their solution times.
Which pair of measures of center and variability—mean and MAD, or median and IQR—would you choose to describe the distribution of the solution times?
A local library showed a movie during a children’s festival. Jada recorded the ages of 100 children who watched the movie. Here is a histogram for her data.
Can the histogram be used to estimate the mean age of the movie watchers?
A local library showed a movie during a children’s festival. Jada recorded the ages of 100 children who watched the movie. Here is a histogram for her data.
Can the histogram be used to estimate the median age of the movie watchers?
A local library showed a movie during a children’s festival. Jada recorded the ages of 100 children who watched the movie. Here is a histogram for her data.
Can the histogram be used to find the exact median age of the movie watchers?
A local library showed a movie during a children’s festival. Jada recorded the ages of 100 children who watched the movie. Here is a histogram for her data.
Is it possible to tell from the histogram if there was at least one 3-year-old who watched the movie?
In a game, players are shown a picture that has 14 butterfly shapes hidden in it. They are given 3 minutes to find as many hidden butterfly shapes as they can.
Twenty fourth-grade students and twenty sixth-grade students played this game. The dot plots represent the numbers of butterfly shapes the two groups found.
Write a few sentences comparing the numbers of hidden butterflies found for these two groups of students.
In a round of mini-golf, Elena records the number of strokes it takes to hit the ball in the hole for each green.
Find the range for the number of strokes needed on each green.
In a round of mini-golf, Elena records the number of strokes it takes to hit the ball in the hole for each green.
Find the median for the number of strokes needed on each green.
In a round of mini-golf, Elena records the number of strokes it takes to hit the ball in the hole for each green.
Find the interquartile for the number of strokes needed on each green.