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A data set has a median of 89, and four of the numbers in the data set are less than median. The data set contains a total of n numbers. If n is even, and none of the numbers in the data set is equal to 89, what is the value of n?

Respuesta :

mreijepatmat
This data set looks like the following:

a,b,c,d,88,90.e,f,g,h

Since n is even, the median is the average of 88 & 90, that is (88+90)/2 =89

so n= 10
fichoh

Using the median value principle, the number of samples in the data would be 10.

Number of values below the median = 4

Number of values above the median = 4

Since the data itself does not have a value of 89, then number of values in the middle is 2

(n1 + n2) = 89

a1, A2, a3, A4, (a5, a6), A7, a8, a9, a10 (number of samples is even)

Therefore, the number of samples in the data would be 10

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