Question

There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag.

What is the theoretical probability of randomly drawing a red marble and then a green marble?

Answer 1

first add up the total # of marbles

probability of red marble = # red/total

then, after that, we will assume the marble is not replaced (usually if it doesn't say there's replacement, assume it's not). calculate the new total # of marbles after the red one is removed, then calculate the probability of green = #green/total

then multiply the two probabilities together

Answer 2

first add up the total # of marbles

probability of red marble = # red/total

then, after that, we will assume the marble is not replaced (usually if it doesn't say there's replacement, assume it's not). calculate the new total # of marbles after the red one is removed, then calculate the probability of green = #green/total

then multiply the two probabilities together

Answer 3

Wow