SOLUTION: The height of babies are normally distributed with a mean of 65 centimeter and a standard deviation of 9 centimeter. find the percentage of the followong baby heights - less than

Algebra.Com
Question 1178760: The height of babies are normally distributed with a mean of 65 centimeter and a standard deviation of 9 centimeter. find the percentage of the followong baby heights
- less than 54 centimeter
-at least 80 centimeter (more)
-between 70 and 86 centimer (between)
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi
normally distributed:  µ = 65 and σ = 9
Using a TI 0r similarly an inexpensive calculator like Casio fx-115 ES plus:
Continuous curve:
P(x < 54) = P(x ≤ 54) =  normalcdf(-9999,54,65,9) = .1108
P(x> 80) = 1 - P(x ≤ 80) = 1 - normalcdf(-9999,80,65,9) = 1- .9522 = .1478
P(70 < x < 86) = normalcdf(70,86,65,9) = .2794

Important You feel comfortable using Your calculator
and knowing it can be used for in-class testing.
Wish You the Best in your Studies.

RELATED QUESTIONS

Assuming that the weights of newborn babies are normally distributed with mean 6.5 lbs... (answered by Theo)
Heights of certain plants at a nursery are normally distributed with a mean of 52.5... (answered by ewatrrr)
The lengths of pregnancies of humans are normally distributed with a mean of 268 days and (answered by khwang)
the lenghts of pregnancies of humans are normally distributed with a mean of 268 days and (answered by robertb)
Assume that the heights of women are normally distributed with a mean of 63.6 inches and... (answered by Boreal)
assuming that the weights of a newborn babies at a certain hospital are normally... (answered by stanbon)
The amount of Jenns phone bill is normally distributed with a mean of $65 and a standard... (answered by Boreal)
what cappacity is a coffe machine with dimensions of 70 centimeter height, 28 centimeter... (answered by Cromlix)
A cylinder with a radius of 4 centimeter and height of 5 centimeter (answered by Alan3354)