Answer:
And the best option would be:
Step-by-step explanation:
We assume that the distribution for the random variable is:
For this case we want to calculate the following probability:
And we can use the normal standard distribution or excel and we got:
just use the formula
1 out 3
1 divided by 3 is equal to 0.33...
In order to get the percentage, multiply 0.33 by 100 which is equal to 33%.