Class 11 Economics Important Chapter 17 Graphic Presentation

Class 11 Economics Important Chapter 17 Graphic Presentation Solutions English Medium As Per AHSEC New Syllabus to each chapter is provided in the list so that you can easily browse through different chapters ASSEB Class 11 Economics Important Solutions and select need one. AHSEC Class 11 Economics Additional Notes English Medium Download PDF. HS 1st Year Economics Important Solutions in English.

Class 11 Economics Important Chapter 17 Graphic Presentation

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. Assam AHSEC Board Class 11 Economics Additional Question Answer are part of All Subject Solutions. Here we have given HS 1st Year Economics Important Notes in English for All Chapters, You can practice these here.

Graphic Presentation

Chapter: 17

PART – B : STATISTICS FOR ECONOMICS

IMPORTANT QUESTION AND ANSWER

Short Type Questions and Answers:

1. What is a graphic presentation?

Ans: Graphic presentation is a method of representing data on graph paper using lines or curves to show relationships between variables.

2. Why is a false base line used in graphs?

Ans: False base line is used to save space and clearly show variations when the lowest data value is relatively high.

3. What is the difference between a histogram and a bar diagram?

Ans: A histogram has adjacent bars with no gaps and both height and width are important, while a bar diagram leaves spaces between bars and mainly focuses on height.

4. What is a frequency polygon?

Ans: A frequency polygon is a graph formed by joining the midpoints of the tops of the rectangles of a histogram with straight lines.

5. What is the first step in constructing a frequency polygon using a histogram?

Ans: First, draw a suitable histogram.

6. How are the mid-points used in constructing a frequency polygon?

Ans: The mid-points of the upper sides of each rectangle in the histogram are joined by straight lines.

7. What should be done at the ends of the frequency polygon?

Ans: The ends of the frequency polygon should preferably be extended to the base line at the mid-point of classes at both ends.

8. How does a frequency curve differ from a frequency polygon?

Ans: A frequency curve is drawn by joining points with a freehand smooth curve, while a frequency polygon uses straight lines.

9. What is the main requirement for drawing a frequency polygon using the histogram method?

Ans: The construction of a histogram is a prerequisite.

10. Why does the area excluded from the histogram equal the area included under the frequency polygon?

Ans: Because while drawing the frequency polygon, some areas under the histogram are excluded and some new areas are included, balancing each other out.

11. What is plotted on the X-axis and Y-axis when drawing a less than ogive?

Ans: The upper class limits are plotted on the X-axis, and the cumulative frequencies on the Y-axis.

12. How is the cumulative frequency calculated for a more than ogive?

Ans: It is calculated by subtracting the frequencies of the previous classes from the total frequency successively.

13. What is one limitation of graphs in presenting data?

Ans: Graphs reveal only the approximate position of data and cannot show exact measurements.

14.  Why might graphs be misused by advertisers or politicians?

Ans: They can be manipulated to mislead common people.

15.  What is the main advantage of graphic presentation over diagrammatic presentation?

Ans: Graphs make data more meaningful and help in the analysis and interpretation of data.