In what years was the precipitation more than one standard deviation from the mean?
A. 1995, 1998, and 2002
B. 1999 and 2002
C. 1995, 1998, and 2003
D. 1996 and 1997

Question

In what years was the precipitation more than one standard deviation from the mean?
A. 1995, 1998, and 2002
B. 1999 and 2002
C. 1995, 1998, and 2003
D. 1996 and 1997

anonymous · Answer

attachment

anonymous · Answer

mean = 7.0+7.3= 14.3/2 = 7.15
D. 1996 and 1997

anonymous · Answer

how did yo get that? : o

anonymous · Answer

hello....?

anonymous · Answer

the frisr step if we order the data 
4.2   5.4   6.9   7.0   7.3   8.5  9.2  9.4    16.1   17.0  
we have 10 datas 

to get mean we have to find the data in the middle , which is between the data number 5 and 6 so we look that the fifth data is 7.3 and the sixth 8.5

anonymous · Answer

oh i was wrong ..

anonymous · Answer

uhm... 
ok, well... i'm just gonna guess B.

anonymous · Answer

I think it should be 1996 and 2001 .. uhmmm ..

anonymous · Answer

I doubt myself .. let's look for another help..