Question

There is a 25% chance that a canal will flood during any given year. What is the experimental probability that the canal will flood in at least 1 of the next 6 years?

Answer 1

Probability = 0.356

Explanation:

Probability of flooding = 25/100

= 0.25 lets call it p

So probability of not flooding = 1-0.25= 0.75. Lets call it q

So to find the probability of flooding in 1 out of 6 we use combination.

Probabilty = 6C1p^1q^5

Probabilty= 6 *0.25^1 *0.75^5

Probability = 0.356