Measures of Cen...

What is the mode for the data 20, 20, 20,21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 24, 24, 25 ?

Find the mean of the first five prime numbers.

The mean of the values $$0, 1, 2, ..... , n$$ having corresponding weight $$^nC_0, ^nC_1, ^nC_2, ..... , ^nC_n$$ respectively, is?

The 'less than' ogive curve and the 'more than' ogive curve intersect at.

The median of the following numbers $$25, 27, 21, 23, 24$$ is ___________.

A variate X takes values 2, 9, 3, 7, 5, 4, 3, 2, 10. What is the median?

Which of the following is true?

Calculate Median value from the following frequency distribution:

The mean, median and mode respectively of the numbers $$7, 4, 3, 5, 6, 3, 3, 2, 4, 3, 4, 3, 3, 4, 4, 3, 2, 2, 4, 3, 5, 4, 3, 4, 3, 4, 3, 1, 2, 3$$ are __________.

What is the class mark of the class interval-(80-90)?