Dot Plots Homework
1. The following dot plot shows the number of text messages sent by a random sample of adults on a particular
day.
a. How many adult responses were collected?
b. What is the range of the number of text messages?
c. Briefly describe the distribution of the number of text
messages sent by adults.
2. The following dot plot shows the number of text messages sent by a random sample of seventh grade students
on the same day.
a. How many student responses were collected?
b. What is the range of the number of text messages that were sent by
the students?
c. Compare the distributions of the data collected from the adults in
Question #1 and the students in this question. What conclusions can
you draw?
3. The masses (in grams) of 12 randomly seleced eggs each in Carton A and Carton B are presented in the following
dot plots.
a. Find the range of the masses of eggs in each carton.
b. Briefly descibe the distribution of the masses of eggs in each carton.
c. Analyz and compare the two distributions. What conclusions can
you draw?
4. Ronald made a six-faced die numbered 1 to 6. He rolled it 20 times and presented the scores in the following
dot plot.
a. Find the percentage of times that the score is 6.
b. Discuss the distribution of the scores obtained.
5. The hourly wages (in dollars) of 12 workers in a company are presented in two different dot plots.
a. Do both dot plots give the same information?
b. Compare the visual impressions between these two dot plots.
c. What causes the difference between the visual impressions of these two dot plots?