The median number of telephone lines = 0
What is center of data?
- "It is the middle of a distribution."
- "Mostly, The measures of the center of the data are the mean and the median."
What is median?
"It is the middle value of a sorted list of numbers."
From the given dot plot,
We have data as (0 × 16), (250 × 5), 500, (750 × 2), (1000 × 2), 1250, 1750
the total number of telephone lines are n = 28
We write (0 × 16), (250 × 5), 500, (750 × 2), (1000 × 2), 1250, 1750 as
0, 0, 0, ... 16 times,
250, 250, 250, 250, 250, 500, 750, 750, 1000 , 1000, 1250, 1750
From above data we can observe that the middle of the data is the average of 0's at 14th and 15th position.
So, the median would be,
M = 0
Therefore, the median number of telephone lines = 0
Learn more about the center of the data here:
brainly.com/question/17090777
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