let's complete you table
Red Gr Br Yll
0.4 0.28 x 0.4 , but they must add up to 1, so x = .08
A bag contains only red, green, brown and yellow marbles.
The probabilities of selecting each colour are shown below.
The probability of choosing a red marble is the same as choosing a yellow marble.
Colour Red Green Brown Yellow
Probability 0.4 0.28
Find the probability of selecting a brown or yellow marble.
1 answer
1 answer