Question

Question 1

Eight balls numbered from 1 to 8 are placed in an urn. One ball is selected at random. Find the probability that it is NOT number 2.

Answer 1

87.5%

Explanation:

Answer 2

87.5% probability that it is NOT number 2.

Explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

Any ball not numbered 2. So 1,3,4,5,6,7,8. So 7 desired outcomes, which means that
`D = 7`

Total outcomes:

All balls, which are 8. So
`T = 8`

Probability:

`p = (D)/(T) = (7)/(8) = 0.875`

87.5% probability that it is NOT number 2.