Question

In a bag there are 3 red 4 white, and 5 blue marbles. once a marble is selected it is not required. find: p(white, red) find: p(blue, white, red.)

Answer 1

Below in bold.

Explanation:

Total number of marbles = 3+4+5 = 12

P(white, red) = 4/12 * 3/11

= 12/132

= 1/11,

P(blue, white, red) = 5/12 * 4/11* 3/10

= 60/1320

= 6/132

= 1/22.