You randomly draw a marble from a bag of marbles that contains 3 blue marbles, 4 green marbles, and 5 red
marbles.
What is P(draw a blue marble)?
If necessary, round your answer to 2 decimal places

Pls help

0.25

Step-by-step explanation:

Total number of marbles = 3 + 4 + 5 = 12

Number of blue marbles = 3

p(draw a blue marble) = (number of blue marbles)/(total number of marbles)

p(draw a blue marble) = 3/12 = 1/4 = 0.25

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

whats the