Question

1. The mean of 12 observations was found to be 35. Later on, it was found that an observation 56 was wrongly taken as 32. Find the correct mean
2. The weights (in kg) of 7 students of class VII are given below: 36, 40, 35, 37, 32, 31, 41 Find the median weight of a student.
3. Find the median of 11, 14, 13, 18, 23, 25, 31, 16. If 11 is replaced by 21, find the new median.
4. Find the mode of the following data which shows the marks (out of 20) of 15 students: 12 11 10 10 1 10 17​

Answer 1

Step-by-step explanation:

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