Study the following pie chart carefully and answer the questions given below:
The following pie chart gives the information about the distribution of population (in %) of India in different geographical zones :
To determine how much percentage less the population of the north zone is compared to the east zone, we must compare the two percentages given in the pie chart data.
Let's assume from the pie chart:
The percentage by which the north zone is less than the east zone can be calculated using the formula:
\(\text{Percentage Difference} = \left(\frac{E - N}{E}\right) \times 100\%\)
Given values (as obtained from the context or diagram):
Now insert these values into the formula:
\(\text{Percentage Difference} = \left(\frac{25 - 16}{25}\right) \times 100\%\)
Simplifying:
\(\text{Percentage Difference} = \left(\frac{9}{25}\right) \times 100\% = 36\%\)
Thus, the population of the north zone is 36% less than that of the east zone, which matches the correct option.
Contours in the bivariate (weight, height) graph connect regions of approximately equal popula-tions. Which of the following interpretations is correct?
The function $f(x)$ is plotted against $x$ as shown. Extrapolate and find the value of the function at $x = -1$.

Which of the following inferences can be drawn from the above graph?
Number of times a research paper is viewed and cited is shown in the plot. In which month was the percentage increase in citation more than the double of the percentage increase in view?

| Students | A | B |
|---|---|---|
| $S_1$ | 12 | 28 |
| $S_2$ | 10 | 29 |
| $S_3$ | 16 | 27 |
| $S_4$ | 05 | 29 |