The shelf life of a packed food follows a normal distribution, with a mean of 60.5 days and a standard deviation of 7.2 days. Rounded to the nearest hundredth, what is the probability that a package lasts fewer than 50 days?

And we can find the probability using the normal standard distribution or excel and we got:

Step-by-step explanation:

Let X the random variable that represent the shelf life of packed food of a population, and for this case we know the distribution for X is given by:

Where and

We are interested on this probability

For this case we can solve this problem with the z score formula:

If we apply this formula to our probability we got this:

And we can find the probability using the normal standard distribution or excel and we got:

at home andrea has 1 2/3 kilograms of rice

step-by-step explanation: