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

`0.76`

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)
`= (16)/(21)` ≈
`0.76`

Answer 2

16/21 or approximately 0.761

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%)