Question

A fly has a life between 4-6 days. What is the probability that the fly will die at exactly 5 days?

Answer 1

Answer:

1/3

Step-by-step explanation:

A fly has life of 4 or 5 or 6 days

Life S={4,5,6}

n(S)=3

the chance that the fly will die at exactly 5 days A={5}

n(A)=1

the probability that the fly will die at exactly 5 days

P(A)=n(A)/n(S)

     =1/3

Answer 2

Given:

Life of fly = 4-6 days

To Find:

The probability that the fly will die at exactly 5 days.

Solution:

we have,

Life of fly = 4-6 days

so, the life can be of either 4 days or 5 or 6 days, therefor sample are 3.

S = {4,5,6}

n(S) = 3                     {number of sample.}

Event =  the fly will die at exactly 5 days E = {5}

n(E) = 1

Probability = n(E) / n(S)

Probability = 1/3

So, The probability that the fly will die at exactly 5 days is 1/3.