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The mean of 50 items was found to be 34. Later on it was discovered that 38 was misread as 18. Find the correct mean . full sol

Posted by Paritosh Purbia 6 years, 9 months ago

CBSE > Class 09 > Mathematics

1 answers

Shourya Adhikari 6 years, 9 months ago

Calculated sum of 50 items = (34 × 50) = 1700 Corrected sum of 50 items = (1700 + 38 - 18) = 1720 Correct mean of 50 items = (1720 \ 50) = 34.4

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CBSE > Class 09 > Mathematics