A bag has 7 red marbles, 8 blue marbles, and 5 purple marbles.
Rachel draws a marble from the bag without looking. This means Rachel draws and there is no replacement.
The total number of marbles = Number of (Blue marbles + Red marbles + Purple marbles)
The total number of marbles = 7 red marbles + 8 blue marbles + 5 purple marbles
= 20 marbles
The probability that Rachel draws a blue marble = P(B) = Number of blue marbles/ Total number of marbles
= 8/20
We reduce this to its simplest form.
We divide numerator and denominator by 4
= 4/5
Therefore, the probability that Rachel draws a blue marble is 4/5
To learn more, click the link below:
https://brainly.in/question/23729781?tbs_match=1
