Question

You randomly draw a marble from a bag of marbles that contains 8 blue marbles, 5 green marbles, and 8 red marbles.What is P(draw a blue or red marble)?

Answer 1

Answer:

16/21 or approximately 0.761

Step-by-step explanation:

Add up each marble to get the total number of marbles (21), then add up the sample size (16). From here, divide the sample size by the total number to find the probability. (76.1%)

Answer 2

Answer:

$0.76$

Step-by-step explanation:

Probability = Number of favorable outcomes / Number of possible outcomes

There are $16$ favorable outcomes (the $8+8=16$ marables that are either blue or red).

There are $21$ possible outcomes (the $8+5+8=21$ total marables).

P (draw a blue or red marable) $= \frac{16}{21}$ ≈ $0.76$