Question

What are two different ways you could find the experimental probability of the event that martin does not draw a red marble?

Answer 1

See Explanation

Explanation:

Given [Missing Information]

`Red = 12`

`Blue = 10`

`Green = 15`

`Yellow = 13`

Way 1:

Add up the total marbles that are not red.

`Not\ Red = Blue + Green + Yellow`

`Not\ Red = 10 + 15 + 13`

`Not\ Red = 38`

Divide by total marbles to get the probability;

`Probability = (Npt\ Red)/(Total)`

`Probability = (38)/(38 + 12)`

`Probability = (38)/(50)`

`Probability = 0.76`

Way 2:

Calculate the probability of choosing red

`P(Red) = (Red)/(Total)`

`P(Red) = (12)/(50)`

`P(Red) = 0.24`

Apply complement rule (i.e. subtract it from 1)

`P(Not\ Red) = 1 - P(Red)`

`P(Not\ Red) = 1 - 0.24`

`P(Not\ Red) = 0.76`