Answer:
<em><u>"There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."</u></em>
Step-by-step explanation:
We need to compute the mean for each.
<u>Poplar Middle School:</u>
Lets list the numbers
20,20,20,21,21,21,21,21,22,22,22,22,22,22,22,23,23,23,23,24
The average is sum of all divided by number of numbers, that will be:
435/20 = 21.75
<u>Oak Middle School:</u>
The numbers are:
20,21,21,22,22,23,23,23,23,24,24,24,25,25,26,26,27,27,28,29
The average is sum divided by number of numbers, that will be:
483/20 = 24.15
The difference in mean is:
24.15 - 21.75 = 2.4
We can say, that is about 2 more students in Oak Middle School, correct answer choice is "2nd answer choice" - <em><u>"There are about 2 more students in each class at Oak Middle School than at Poplar Middle School."</u></em>
