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Find the Mean of the Following Data X 19 21 23 25 27 29 31 F 13 15 16 18 16 15 13 - Mathematics

Find the mean of the following data:-

x 19 21 23 25 27 29 31
f 13 15 16 18 16 15 13
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Solution

x f fx
19 13 247
21 15 315
23 16 368
25 18 450
27 16 432
29 15 435
31 13 403
  N = 106 `sum`fx = 2650

Mean `(barx)=(sumfx)/N=2650/106=25`

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APPEARS IN

RD Sharma Class 10 Maths
Chapter 15 Statistics
Exercise 15.1 | Q 2 | Page 5
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