analyze the dot plots. what is the difference between the medians of the two data sets? mm

Explanation:

Step1: Count data - points in Highlands

Count the number of dots in the Highlands dot - plot. There are 50 data - points. Since (n = 50) (an even number), the median is the average of the 25th and 26th ordered data - values. Counting the dots from left to right, the 25th and 26th values are both 18, so the median of Highlands is 18.

Step2: Count data - points in Lowlands

Count the number of dots in the Lowlands dot - plot. There are 30 data - points. Since (n=30) (an even number), the median is the average of the 15th and 16th ordered data - values. Counting the dots from left to right, the 15th and 16th values are both 12, so the median of Lowlands is 12.

Step3: Calculate the difference

Subtract the median of Lowlands from the median of Highlands. (18 - 12=6).

Answer:

6