Question

the ten cats in a pet store were weighed. their weights (in pounds) are given in the dot - plot below. (a dot plot is sometimes called a \line plot.\) find the range and the mode for the data. (a) range: (b) mode:

Explanation:

Step1: Recall range formula

Range = Maximum - Minimum

Step2: Identify maximum and minimum

From the dot - plot, the minimum weight is 2 pounds and the maximum weight is 8 pounds. So, Range = 8 - 2

Step3: Calculate range

Range = 6

Step4: Recall mode definition

The mode is the value that appears most frequently in a data - set.

Step5: Identify mode

From the dot - plot, the weight 7 pounds has the most number of dots (3 dots). So the mode is 7.

Answer:

(a) 6
(b) 7