Question

Suppose a die is rolled repeatedly.what is the chance that the first 4 rolls all show different faces, and the 5th roll shows a face that has appeared before.

Answer 1

6/6x 5/6 x 4/6 x 3/6 x 4/6= 5/27

Answer 2

where is she gone?

Answer 3

\[\eta \sum_{a}^{d} \]