Deviation in Values of Central Tendency by Addition

Q. Mode of the marks of 20 students is 62. After correction in marking scheme, every students got increment of 2 marks. What would be the mode after increment in marks?

1. 62
2. 64
3. 72
4. can not predict

Q.

The average age of two brothers is $9years.$ It is increased by $9years$ when their mothers age is also included then the age of the mother is?

Q. Median of 23 observations is 52, what would be the median after adding 3 in each observations ?

1. 52
2. 53
3. 54
4. 55

Q. The mean of the ages of 13 children is 6. What would be the mean of their ages after 4 years?

1. 11
2. 10
3. 13

Q. The mean of the ages of 13 children is 6. What would be the mean of their ages after 4 years?

1. 11
2. 12
3. 13
4. 10

Q. The median of a set of 9 distinct observations is 20.5. If each of the largest 4 observations of the set is increased by 2, then the median of the new set _________.
(Data is arranged in ascending order)

1. is increased by 2
2. is decreased by 2
3. is two times the original median
4. remains the same as that of the original set