SOLUTION: One of the variables collected in the North Carolina Birth Registry data (A-3) is pounds gained during pregnancy. According to data from the entire registry for 2001, the number o

Algebra ->  Probability-and-statistics -> SOLUTION: One of the variables collected in the North Carolina Birth Registry data (A-3) is pounds gained during pregnancy. According to data from the entire registry for 2001, the number o      Log On


   

Question 1175039: One of the variables collected in the North Carolina Birth Registry data (A-3) is pounds gained
during pregnancy. According to data from the entire registry for 2001, the number of pounds gained
during pregnancy was approximately normally distributed with a mean of 30.23 pounds and a standard
deviation of 13.84 pounds. Calculate the probability that a randomly selected mother in North
Carolina in 2001 gained:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
Normal Distribution:    μ = 30.23  and  σ = 13.84  
Your Question did not make the trip:

This is one example using TI Calculator for You to follow.
 P(x ≤ 40) = normalcdf(-9999, 40, 13.84, 30.23) = .7599

One could also Use a Casio fx-115ES plus ... inexpensive and easy to use 
Wish You the Best in your Studies.