Below is the distrubution for number of miles run in a week for a group of 20 runners. Find the mean number of miles run for this group. Use your calculator. Round your answer to the nearest tenth class boundaries frequency
5 - < 10 - 1
10 - < 15 - 2
15 - < 20 - 3
20 - < 25 - 5
25 - < 30 - 4
30 - < 35 - 3
35 - < 40 - 2

Step-by-step explanation:

Added two columns for midpoint and product of frequency and midpoint

Class boundaries >> frequency >> midpoint >> midpoint x frequency

Sum of last column

Mean = sum of last column/ sum of frequencies

Mean

3, 12, 48, 384, 1536, 6144, 24576, 98304

step-by-step explanation:

just keep timing it by 4.

c: y > - 1/6x + 1

step-by-step explanation:

dashed line - meaning this < or > also not equal

solid line - meaning this < or > also equal

your answer is c because y > means up & it's shaded up, but y < means down

hope this ! : )