Birth weighs at a local hospital have a normal distribution with a mean of 110 ounces & a standard deviation of 15 ounces.
a. What’s the proportion of infants with births weighs above 125 ounces?
b. What’s the proportion of infants with birth weights between 125 ounces & 140 ounces?

how do i solve problems a & b to get the correct answers ?

Question

Birth weighs at a local hospital have a normal distribution with a mean of 110 ounces & a standard deviation of 15 ounces.
a. What’s the proportion of infants with births weighs above 125 ounces?
b. What’s the proportion of infants with birth weights between 125 ounces & 140 ounces?

how do i solve problems a & b to get the correct answers ?

.sam. · Answer

http://ca.answers.yahoo.com/question/index?qid=20110515201925AAgS9Ol

anonymous · Answer

need step by step explanation please