Question Bank

Median is more robust than mean because it is less affected by:

What is the median of 100, 200, 300?

In the series 2, 2, 3, 3, 4, 4, there is:

If the mean of x, x+2, x+4 is 10, find x.

The empirical relation between mean, median, and mode is:

The mean of 10 numbers is 15. If one number 24 is replaced by 34, what is the new mean?

If the median of x/5, x, x/4, x/2, x/3 is 8 (where x > 0), find x.

In a bimodal distribution, the modes are 12 and 15. What is the mode reported if the frequency of 12 is higher than 15?

If the mean of 6, 4, 7, p, 10 is 8, find the value of p.

Find the median of the first 10 prime numbers.

Given mean = 20 and mode = 14, find the median using the empirical formula.

If the mean of n observations is X, and each observation is multiplied by 3, the new mean is:

For a set of 11 observations arranged in descending order, which position is the median?

If the arithmetic mean of 5, 7, 9, x is 9, what is the value of x?

Calculate the mean of the squares of the first three natural numbers.

Which of the following is true for the data: 2, 2, 4, 4, 4, 5, 5?

The median of observations 11, 12, 14, 18, x+2, x+4, 30, 32, 35, 41 arranged in ascending order is 24. Find x.

If the mode of a data is 18 and mean is 24, find the median.

Find the weighted mean of 10, 20, 30 with weights 1, 2, 3 respectively.

If the mean of a, b, c is M, and (a+b+c+d)/4 = M, then d must be: