Statistics

Calculate the median for: 40, 50, 30, 60, 80, 70.

If for a series, $\sum fx = 200$ and mean = 20, then $\sum f = $ ?

The mode of 12, 11, 15, 12, 14, 11, 12, 10, 15 is:

A cricketer has a mean score of 50 in 10 innings. How many runs must he score in the 11th inning to raise his mean to 55?

If the mean of $a, b$ is 10, and $b, c$ is 20, then $c-a$ is:

In the construction of a cumulative frequency table, we use:

The middle value of 5, 2, 8, 12, 4 is:

Find the mean of the first four perfect squares.

If the mean of 2, 3, x, 7, 8 is x, then x is:

Mode can be found from a histogram by looking at:

If the mean of 5 numbers is 0, their sum is:

Find the median of 10, 10, 10, 10, 10.

The geometric mean of 2 and 8 is:

If the mean of 5 observations is 10 and each observation is decreased by 3, the new sum is:

Which central tendency is best for finding the size of shoes most people wear?

The mean of the first five whole numbers is:

Find the median of: 20, 25, 15, 10, 30, 35, 40.

In an Ogive, the x-axis represents:

If Mean = Median, the distribution is:

Find the mode of 1.5, 2.5, 1.5, 3.5, 4.5, 1.5, 2.5.