Question

Check my work??

A set of data with a mean of 45 and a standard deviation of 8.3 is normally distributed. Find the value that is +3 standard deviations away from the mean.

48.0
78.9
20.1
69.9 <----

Answer 1

I did 45+3(8.3) and got 69.9. I'm not sure if I did it right though...

Answer 2

@dmndlife24

Answer 3

yes I typed it in mathway it is 69.9 good job!

Answer 4

Thanks! :D

Answer 5

welcome heres the proof from mathway.com

Answer 6

I cropped it if your wondering why it looks like that

Answer 7

Okay great thanks, I'll have to start using mathway more. I usually only use it for graphs.

Answer 8

yea I love it! tag me if you need me