9514 1404 393
Answer:
J 24
Step-by-step explanation:
Count the number of outcomes from the coin toss. There are 2: heads or tails.
For each of those, there are 3 outcomes from the marble pick: R, Y, G. So the tree up to this point has 2·3 = 6 leaves:
head - R
head - Y
head - G
tail - R
tail - Y
tail - G
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For each of these 6 outcomes so far, spinning the spinner will add 4 more. That will bring the total of possible outcomes to ...
2 × 3 × 4 = 24 . . . outcomes
The short answer is that the total number of outcomes is the product of the numbers of possibilities at each stage.
