Following histogram shows certain frequency distribution against class intervals.

The approximated mean of this distribution is:

For determination of mode and median graphically, one considers:

The curve obtained by joining the points, whose x-coordinates are the upper limits of the class interval and y-coordinates are corresponding cumulative frequencies is called:

Which statement of the following is incorrect?

The variation among the observations of each specific class is known as:

For making frequency distribution, the number of classes used depends upon:

Mutual and unique variances among multiple factors can be embodied in a diagram that comprises overlapping circles. The diagram is known as:

The graphical representation of the time series is known as:

Which of the following is a method of collection of primary data?

The class marks in a frequency table are given to be 5, 10, 15, 20, 25, 30, 35, 40, 45, 50. The class limits of the first five classes are

In a test in Mathematics, 20% of the students obtained “first class”. If the data are represented by a Pie-Chart, what is the central angle corresponding to “first class”?

The following table gives the monthly expenditure of two families:

In constructing a pie diagram to the above data, the radii of the circles are to be chosen by which one of the following ratios?

In an examination, 40% of candidates got second class. When the data are represented by a pie chart, what is the angle corresponding to second class?