Question

Quick standard deviation question?

If the data is 80,85,87,92,86,90,94,100,75,45,85,38,72,94,62
and the mean
is 79.. The standard deviation came up as 17.431771759252 but that can't be right can it?

Answer 1

@sarah786 @JMark @CGGURUMANJUNATH @UsukiDoll

Answer 2

dunno :/

Answer 3

Just for fun -
http://www.wolframalpha.com/input/?i=Standard+deviation+of+80%2C85%2C87%2C92%2C86%2C90%2C94%2C100%2C75%2C45%2C85%2C38%2C72%2C94%2C62

Answer 4

And this -
http://www.wolframalpha.com/input/?i=Standard+deviation+of+80%2C85%2C87%2C92%2C86%2C90%2C94%2C100%2C75%2C45%2C85%2C38%2C72%2C94%2C62&a=*C.Standard+deviation-_*PopulationStandardDeviation-

Answer 5

wow ! I was way off thanks so much you're awesome!!

Answer 6

What can I say...I was born to be lazy ;)

Answer 7

Lol!

Answer 8

@LastDayWork got time to help with another one?

Answer 9

Yep! :)

Answer 10

Okay so I have this data The mean is 79 for A 85.13 for Class B.
Median for A is 85 and the median for B is 86 then I was asked this question Explain how the values for Classes A and B vary about the mean and median. What information does this give Mrs. Smith?

Answer 11

@LastDayWork

Answer 12

"..What information does this give Mrs. Smith?.."
The question is directed at a lady..would you mind taking the initiative.. ;D

Answer 13

@lolloveyou ^^

Answer 14

I have no idea what information it would give her or what they mean but how the numbers vary lol i'm gonna close this thread and open the question as a new one