The mean of the observation:18, 25,16,19,25,32 is 20.Find the value of x.
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0
Answer:
Total =I35+x=140
x = 140-135=5. Ans
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1
mean = sum of observation/no of observation
=> 20 = 18+25+16+19+25+32+x/7
=> 20×7 = x+135
=> 140-135 = x
=> x = 5 ans..
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