The mean of 100 items was found to be 64. Later on it was discovered that two items were misread as 26 and 9 instead of 36 and 90 respectively. The correct mean is (a) 64.86 (b) 65.31 (c) 64.91 (d) 64.61

The mean of 100 items was found to be 64. Later on it was discovered t

1.	The mean of 100 items was found to be 64. Later on it was discovered that two items were misread as 26 and 9 instead of 36 and 90 respectively. The correct mean is (a) 64.86 (b) 65.31 (c) 64.91 (d) 64.61
Answer» The mean of 100 items was found to be 64. Later on it was discovered that two items were misread as 26 and 9 instead of 36 and 90 respectively. The correct mean is (a) 64.86 (b) 65.31 (c) 64.91 (d) 64.61