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CBSE Class 9 Answered

calculate the mean
Asked by | 10 Jan, 2014, 09:10: PM
answered-by-expert Expert Answer
x:   5,  6,   7,   8,  9
f:    4,  8,  14, 11, 3
xf: 29, 48, 98, 88, 27
 
Thus, mean = Σfx/Σf = 290/40 = 7.25
Answered by | 11 Jan, 2014, 12:35: AM

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