Question

The test scores of 15 students are listed below. Find the third​ decile, D3.
41, 45, 51, 57,59, 62,66,69, 75,78, 85,87,90,94,95

Answer 1

The third decile is 58.

What is the third decile?

Decile is a statistical term that divides the data into groups of ten. The third decile is the third group of the data set.

Third decile = 3/10 x (n + 1 )

3/10 x 16 = 4.8th term  = 58