P(X=8.5) if X has normal distrib. with mean 13 and sdev. 6.2

[holdyourhorsiieees]

sdev=standard deviation..

how would i calculate that? i will be using a ti 83...

thanks in advance!

 

[tkhunny]

I suspect, if you have written the problem correctly, that this is an UNDERSTANDING problem, not a calculating problem.

If you have a continuous distribution, with no probability masses, the probability of any single value is zero.

If you meant less than or greater than, that would be a different problem.

 

[holdyourhorsiieees]

yes, the problem is written correctly.


that makes perfect sense! it must be zero, duuuuuuh!

thank you!
:]