If the mean of the following data is 5 them , find the value of
xi 5 10 15 20 25
fi 6 4 5 P 7

Dear Student,
 
x‚Äči fi xifi
5 6 30
10 4 40
15 5 75
20 p 20p
25 7 175
Total 22 + p 320 + 20p

Mean = 15 = xififi 15 = 320 + 20p22 + p 330 + 15p = 320 + 20p 10 = 5p p = 2

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