Data available in an unorganized form is called __________ data

Let m be the mid point and b be the upper limit of a class in a continuous frequency distribution. The lower limit of the class is _______.

The algebraic sum of the deviations of a set of n values from their mean is _______.

If the mean of five observations x, x+2, x+4, x+6, x+8, is 11, then the mean of first three observations is _______.

Find the mode for the set of values 17, 18, 20, 20, 21, 21, 22, 22.

A set of numbers consists of five 4’s, four 5’s, nine 6’s,and six 9’s. What is the mode.

The following data gives the number of residents in an area based on their age. Find the average age of the residents

The arithmetic mean of 6 values is 45 and if each value is increased by 4, then find the arithmetic mean of new set of values

Find the median of the given values : 47, 53, 62, 71, 83, 21, 43, 47, 41.

Calculate the median for the following data:

In a distribution, the mean and mode are 66 and 60 respectively. Calculate the median.