Question

Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 9 ounces and a standard deviation of 1.1 ounces. Round your answers to 4 decimal places.

If one potato is randomly selected, find the probability that it weighs less than 10 ounces.

Answer 1

Solution :

Given that ,

mean = = 9

standard deviation = = 1.1

P(X< 10) = P[(X- ) / < (10 -9) /1.1 ]

= P(z <0.91 )

Using z table

= 0.8186