Probability

Question

The amount of milk sold each day by a grocery store varies according to the normal distribution with mean 130 gallons and standrd deviation 12 gallons. On a randomly selected day, the probability that the store sells at least 154 gallons is?

Answer 1

Hi Vivian,

              Z=(154-130)/12=24/12=2 From a table of the normal distribution  with Z>2 p(x>154)=.02275

 

Jim