Question

The two dot plots show the number of miles run by 14 students at the beginning and at the end of the school year. Compare each measure of the two dot plots.

Answer 1

1. Mean start of school year:

• (5 + 2*6 + 4*7 + 4*8 + 2*9 + 10) / 14 = 7.5

2. Median end of school year:

• 8, middle two numbers are 8

3. Range end of school year:

• 10 - 6 = 4