NDA | Mathematics | DI

Consider the following statements in respect of histogram:

1) If the class interval is of the same size, then the area of histogram = NK, where K = size of the class and N = sum of frequencies of all class

2) Is it possible to construct a histogram of a discontinuous frequency distribution.

Which of the above statements is/are correct?

Consider the following statements in respect of a histogram.

1. The height of the rectangle is determined by the frequency of the class it represents.

2. Frequency polygon can be drawn after drawing histogram.

3. Histogram is a suitable method for representing the partitioning of total into subpart.

Which of the above statements is/are correct?

Consider the following statements:

Statement 1: Range is not a good measure of dispersion.

Statement 2: Range is highly affected by the existence of extreme values.

Which one of the following is correct in respect of the above statements?

Given graph is an income  expenditure graph that shows savings of Raju.

If region A belongs to the time span 2005-10 of Raju’s income and expenditure graph. What relationship does region A show’s between his income and expenditure?

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?