List of top Mathematics Questions on Statistics and Probability asked in TS EDCET

The mean of 12 observations was calculated as 28. Later, it was found that one observation was wrongly recorded as 46 instead of 26, and another observation was completely omitted. If the correct mean is 27, find the value of the omitted observation.

The median of the given data is
89, 45, 56, 67, 89, 45, 78, 45, 78, 45, 67

The average of the squares of the first 50 natural numbers is