Respuesta :
The number of customers that visited the store during the eight hour if the median of customers didn't change is 20.
What is median?
The median is the middle value in a list ordered from smallest to largest.
Median formula for odd number of terms
[tex]Median = \frac{(n+1)}{2}[/tex] th term
Median formula for even number of terms
The median is then usually defined to be the mean of the two middle value.
According to the given question.
We have a data of customers who visit the store each hour on a Saturday is
15, 23, 12, 28, 20, 18, 23
For finding the median of the above data arrange the above numbers in ascending order.
⇒ 12, 15, 18, 20, 23, 23, 28
Here, n = 7
Therefore,
Median = [tex]\frac{7+1}{2} ^{th} = 4th[/tex] term
⇒ Median = 20
When one more data is added, n becomes equal to 8.
Then,
The median will be the average of the 4th and 5th term. Since, the median does not change , it means the median number of customers per hour is still 20.
Hence, the number of customers that visited the store during the eight hour if the median of customers didn't change is 20.
Find out more information about median here:
https://brainly.com/question/21396105
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