¹/9
Step-by-step explanation:
Of the total marbles (4 + 2 + 3) = 9 , the number of blue marbles is 2. The probability of drawing out a blue marble is therefore ²/9
A coin has two sides – therefor two possibilities in a toss (heads or tails). The probability of tossing either is therefore ½.
We MULTIPLY two probabilities when both conditions need to be satisfied at the same time. Therefore;
²/9 * ½ = ²/18
= ¹/9
