1.
The average height of 5 students is 1.45 m. If one student has left the group the average height of the remaining four of them is 1.44 m. what was the height of the students who left ?
2.
The mean of 10 numbers is 20. If 5 is minus from every number, What will be the new mean?
3.
Given below is a data set of temperatures (in degrees celsius) -6, -8, -2, 3, 2, 0, 5, 4, 8, What is the range of the data?
4.
IF the mean of 6, 4, 7, p and 10 is 8. Then x=
5.
IF the mean of 6, 8, 5, x and 4 is 7. Then x=
6.
If the mean of four observation x , x + 2, x + 6, x + 8 is 11 then x is :
7.
The mean of 5 numbers is 18. If one number is excluded, their mean is 16 then excluded number is
8.
Let x be the median of the data 13, 8, 15, 14, 17, 9, 14, 16, 13, 17, 14, 15, 16, 15, 14. If 8 is replaced by 18, then the median of the data is y. What is the sum of x and y?
9.
What is the mean of the median, mode and range for the data given below? 11, 25, 0, 8, 25, 30, 44, 50, 30, 18, 20, 17, 11, 9, 24, 25, 29
10.
The mean of 200 items was 50. Later on it discovered that the two items were misread as 92 and 8 instead of 192 and 88. Find correct mean.
