Question

A bucket contains 5 yellow and 7 red balls. If 2 balls are selected randomly without replacement, what is the probability that they will both be yellow?

Answer 1

MEDAL IS REWARDED

Answer 2

first withdrawal: Probabilty of a yellow = 5/12
that leaves 11 balls
so what is the probability of another yellow being withdrawn?

Answer 3

4/11

Answer 4

right
now for independent events the probabilities are multiplied

so the required probability is

5/ 12 * 4/11

Answer 5

=20/132

Answer 6

right
or you can simplify it by dividing top and bottom by 4 to give

5/33

Answer 7

Oh thanks...



Dint know its that EASY!

Answer 8

Thanks I got it right on my assessment.

Answer 9

100%