The marks of 20 students in a test were as follows: 5, 6, 8, 9, 10, 11, 12, 13, 13, 14, 14, 15, 15, 15, 16, 16, 18, 19, 20. Calculate the mean, median and mode.

The marks of 19 students in a test were as follows: 5, 6, 8, 9, 10, 11, 12, 13, 13, 14, 14, 15, 15, 15, 16, 16, 18, 19, 20. Calculate the median and mode.

The marks of 20 students in a test were as follows, 2,6,8,9,10,11,11,12,13,13,14,14,15,15,15,16,16,18,19 and 20. Calculate (i) the mean (ii) the median (iii) the mode.

The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4-8 (excluding 8 and including 4).

The ages of 15 students in years) in a summer camp are as follows: 11, 14, 13, 15, 16, 10, 12, 12, 14, 11, 10, 12, 13, 15, 11 Find: The mean age.

Marks of 10 students in an English test are as follow, 9,10,7,11,12,6,8,14,15,18 . Find mean marks

The ages of 15 students in years) in a summer camp are as follows: 11, 14, 13, 15, 16, 10, 12, 12, 14, 11, 10, 12, 13, 15, 11 Find: the range of age.

The ages of 15 students (in years) in a summer camp are as follows: 11, 14, 13, 15, 16, 10, 12, 12, 14, 11, 10, 12, 13, 15, 11 Find: the maximum age.

The ages of 15 students (in years) in a summer camp are as follows: 11, 14, 13, 15, 16, 10, 12, 12, 14, 11, 10, 12, 13, 15, 11 Find: the minimum age.

Mode of the data 15, 14, 19, 20, 14, 15, 1 6, 14, 15, 18, 14, 19, 15, 17, 15 is

The scores of 15 students in an examination were recorded as 10,5,8,16,18,20,8,10,16,20,18,11,16,14 and 12, After calculating the mean, median and mode an error is found. One of the values is wrongly written as 16 instead of 18. Which of the following measures of central tendency will change? a) Mean and median (b) median and mode (c) mode only (d) median and mode