The mode of a set of observations is the value which :

Tally marks are used to find which of the following?

 The difference between the highest and the lowest value of the observations in a data is known as _____________________.

The mode of the data : 12, 8, 4, 8, 1, 8, 9, 11, 9, 10, 12, 8 Is ____________.

Find the frequency of Class 60-80 by using the given data:

If the arithmetic mean of 6, 8, 5, 7, x and 4 is 7, then x is

The difference between the maximum and minimum observation in the data is _________________

____________________ means to arrange the numerical data so that it can be analysed for the purpose of arriving at an informed conclusion.

Which of the following statement is true regarding range of data:

1. It tells us how widely the numbers are spread.

2. It is the difference of the highest and the lowest observation.

3. It is the average number of observations.

P, Q and R are three shops selling computers. The sales made by shop P is of the sales made by shop R. The volume of sales by shop Q is twice the volume made by shop P. Shop R sold 600 computers. Which of the following bar charts correctly re[resent the sales of computers by shops P, Q and R.