Standard Deviation problem.

[BeaT]

Hi everyone, I wonder if anyone out there would help me solving this one? - I've struggle with it for a few days now. Thank you so much!
Bea.

 

[Karabiner]

The range ist 0 to 34. Could it be possible that, with a mean of 15, the SD would be 15 or even larger?
With SD=15, Mean + 1 SD would be = 30, and Mean - 1 SD would be = 0.

With kind regards

Karabiner

 

[BeaT]

thanks for the comment, I'll take that on board when think of how I can answer the question.