The heights of female students at a northeastern college are approximately normally distributed with mean 64.5 inches and standard deviation 1.8 inches. According to the normal distribution, what is the approximate percentage of female students with heights between 62 and 63 inches? Round your answer to the nearest integer.

Question

amistre64 · Answer

do you have to table it, ot ti83 it?

anonymous · Answer

ti83

amistre64 · Answer

ti83 makes life simple :)  you have a distribution menu:  2nd, VARS.  choose normalCDF function

amistre64 · Answer

the input for the function is (low, high, mean, sd)

amistre64 · Answer

so ...

normalCDF(62, 63, 64.5, 1.8)  gives us the probability needed

anonymous · Answer

So I choose 2nd and then enter the numbers in parenthesis?

amistre64 · Answer

yep

amistre64 · Answer

seperated by commas of course

anonymous · Answer

I received an error message as my result.

anonymous · Answer

Oh wait, I received 80/20

amistre64 · Answer

then you made an error while inputing  make sure it looks like this:

normalCDF(62, 63, 64.5, 1.8)

amistre64 · Answer

i dont have my ti83 handy so the wolf gives us a dbl chk http://www.wolframalpha.com/input/?i=normalcdf%2862%2C63%2C64.5%2C1.8%29

anonymous · Answer

Got it! Thank you very much for your help. This website is very helpful. :)

amistre64 · Answer

youre welcome