150k views
4 votes
Rasheed examined the gre math scores of the first-year graduate students in his statistics class to see the variability. rasheed found the variance to be 14,400. what is the standard deviation for this data?

User Maanijou
by
7.4k points

1 Answer

2 votes
The standard deviation, generally denoted by
\displaystyle{ \sigma, is the square root of the variance v.

So the formula is :
\displaystyle{ \sigma = √(v)

thus, for v=14,400 we have
\displaystyle{ \sigma = √(14,400)=120


Answer: 120


User Arash Ghazi
by
8.4k points