First, we need to find the median of each week's data set.
For Week 1:
5, 8, 10, 11, 6, 8, 9, 15, 5, 8
The median is the middle number when the data is arranged in order:
5, 5, 6, 8, 8, 8, 9, 10, 11, 15
The median is 8.
For Week 2:
7, 9, 11, 12, 8, 10, 11, 18, 9, 10
The median is the middle number when the data is arranged in order:
7, 8, 9, 10, 11, 11, 12, 18
The median is 10.5.
To find the increase in median, we subtract the median for Week 1 from the median for Week 2:
10.5 - 8 = 2.5
So the increase in the median number of push-ups from the first to the second week is 2.5.
Ten randomly selected people were asked to join a fitness group. Over the next two weeks, they were tested on how many push-ups they could do. The data shows the number of push-ups they did over the two weeks. From the first to the second week, what was the increase in the median number of push-ups?
Week 1: 5, 8, 10, 11, 6, 8, 9, 15, 5, 8
Week 2: 7, 9, 11, 12, 8, 10, 11, 18, 9, 10
(1 point)
2 answers
late but the answer is 2
1 answer