17. If the mean of the following data is 18.75,
then find the value of p.
x I 10 I 15 p 25 30
& I 5 I 10 7 8 1 2
CBSE 2005
c11iner distribution, if mean of the
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Answer:
18.75=(1×1+10×5+1×1+15×10+p×7+25×8+30×12)/7
18.75×7=1+50+1+150+7p+200+360
131.25-762
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