MEAN MEDIAN MODE DOT PLOTS WORKSHEET

Problem 1 :

Use the line plot. Find the

(i) Mean   (ii) Median   (iii) Mode and (iv) Range 

of the data.

Solution

Problem 2 :

The dot plot shows the types of pets treated at a vet on one day.

a) How many pets were treated on this day?

b) Find the mode of the data.

c) What percentage of the pets treated were fish?

b) 100 plus is the mode.

Solution

Problem 3 :

Four girls on a high school track and field team practice the shot put. Each girl made 10 attempts, and the distances measure after each attempt are shown on the plots below.

a)  Which girl’s range of distance was the greatest?

Solution

Problem 4 :

Find the mean, median, and mode of each dot plot.

Solution

Problem 1 :

Martha conducted a random survey during lunch. She asked 20 students and 20 teachers how many siblings they have. The survey data are represented in the dot plots below. Based on the data in the dot plots, fill in the blanks to create a true statement.comparingdotplotq1.png

1) The range of the data for the survey results for teachers is _________ than the range of the data for the survey results for the students.

2) The mode of the data for the survey results for teachers is _________ than the mode of the data for the survey results for the students.

3) The data for the survey for _________ is more symmetrical than the data for the survey for _________.

4) The median of the data for the survey results for teachers is _________ than the median of the data for the survey results for the students.

5) The greatest number of siblings for teachers is _________ than the greatest number of siblings for students.

Solution

Problem 2 :

Use the following information for questions. Determine if each statement is true or false.

1) The range of the data for the heights of softball players is less than the range of the data for the heights of basketball players.

Solution

2) The median of the data for the heights of softball players is greater than the median of the data for the heights of basketball players.

Solution

Problem 3 :

The dot plots below represent two sets of data. 

Here are three statements about the data.

I. The mode of the data in Set A is equal to the mode of the data in Set B.

II. The range of the data in Set A is less than the range of the data in Set B.

III. The median of the data in Set A is greater than the median of the data in Set B.

Which of these three statements appear to be true?

F I only          G I and II            H II and III         J III only

Solution