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

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 <----

anonymous · Answer

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

anonymous · Answer

@dmndlife24

crazypizzalover · Answer

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

anonymous · Answer

Thanks! :D

crazypizzalover · Answer

welcome heres the proof from mathway.com

crazypizzalover · Answer

I cropped it if your wondering why it looks like that

anonymous · Answer

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

crazypizzalover · Answer

yea I love it! tag me if you need me