Calculating standard deviation from histogram data

chomdh

New Member
Joined
Sep 12, 2007
Messages
12
I have lots of data in the form of a histogram. Example:
A1 = 0-10 range, B1 = 500 counts in that range
A2 = 11-20 range, B2 = 345 counts in that range
A3 = 21-30 range, B3 = 756 counts ...

and so on.

Is it possible for me to calculate the standard deviation? for these 1601 data points?

Thank you.
 

Excel Facts

Do you hate GETPIVOTDATA?
Prevent GETPIVOTDATA. Select inside a PivotTable. In the Analyze tab of the ribbon, open the dropown next to Options and turn it off
If you have your information in this type of format you can use the Data Analysis toolpak (Tools > Data Analysis > Descriptive Statistics) from the available addins within Excel to get this output. If you don't see the Data Analysis option in the Tools menu, go Tools > Addins > Analysis Toolpak and press OK. From there you should have this add in. Once you have that in you can follow the steps above and select your range and it should do all of the calculations for you.
Book4
ABCD
19500
213345
324756
4
5
6
7Column1Column2
8
9Mean15.33333333Mean533.6666667
10StandardError4.484541349StandardError119.833681
11Median13Median500
12Mode#N/AMode#N/A
13StandardDeviation7.767453465StandardDeviation207.558024
14SampleVariance60.33333333SampleVariance43080.33333
15Kurtosis#DIV/0!Kurtosis#DIV/0!
16Skewness1.229809259Skewness0.710712258
17Range15Range411
18Minimum9Minimum345
19Maximum24Maximum756
20Sum46Sum1601
21Count3Count3
Sheet1


Hope that helps.

I have lots of data in the form of a histogram. Example:
A1 = 0-10 range, B1 = 500 counts in that range
A2 = 11-20 range, B2 = 345 counts in that range
A3 = 21-30 range, B3 = 756 counts ...

and so on.

Is it possible for me to calculate the standard deviation? for these 1601 data points?

Thank you.
 
Upvote 0
I don't think that answers the question:

I have the data range "bins" in the A column and the number of data points that fall within each range "bin" in the B column, for example. Can I compute a standard deviation of all of the occurrences of the data in all the bins? Say I have 500 data points in the 0-9 range, 500 data points in the 10-19 range, and 1000 data points in the 20-29 range. Is it possible for excel to compute the standard deviation of all 2000 data points?
 
Upvote 0
I apologize, it seems that I don't entirely understand your question. Can you post your data so that I can get a better idea of what it is that you are looking at?
 
Upvote 0

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