you randomly draw a marble from a bag of marbles that contains 3 blue marbles, 4 green marbles, and 5 red…

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.

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.

Answer

Explanation:

Step1: Calculate total marbles

$3 + 4+5=12$

Step2: Calculate probability of blue marble

$P(\text{draw a blue marble})=\frac{\text{Number of blue marbles}}{\text{Total number of marbles}}=\frac{3}{12} = 0.25$

Answer:

$0.25$