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WorksheetsMean, Variance, and SD of a Grouped Freq Dist
Total questions: 10
Worksheet time: 5mins
What is the class width of the given GROUPED Freq. Dist.
9
10
8
None of the above
What does "n" represent?
Total Frequency
width
midpoint
mean
For the given Grouped Freq. Dist. Find the Midpoints
4, 14, 24, 34, 44
5, 15, 25, 35, 45
4.5, 14.5, 24.5, 34.5, 44.5
None of the above
What is the n for the given GROUPED freq. distribution
60
122.5
120
63
What are the values of each of rows for (Xm*f)?
72, 252, 216, 306, 396
81, 261, 220.5, 310.5, 400.5
None of the above
FInd the Mean of the given data
20.2
20.7
14.1
13.99
Given the data find the POPULATION standard Deviation by Calculator.
14.1
20.2
14.0
13
For the following data find the SAMPLE standard Deviation by Calculator
20.2
13
14.1
13.99
For the following data find the POPULATION VARIANCE by calculator
199.078341
195.9183673
14.1
13.99
For the following data find the SAMPLE VARIANCE using the calculator
199.078341
195.9183673
14.1
13.99
