Question

A population consists of the four numbers 3 7 11 15 consider all possible sample of size two which can be drawn with replacement

Answer 1

All possible sample of size two which can be drawn with replacement:

[3,3] ,[3,7], [3,11], [3,15],

[7,3], [7,7], [7,11], [7,15]

[11,3], [11,7], [11,11], [11,15]

[15,3], [15,7], [15,11], [15,15]

So, 16 samples.