Maharashtra Board Text books

Maharashtra Board Class 8 Maths Chapter 11 Statistics Practice Set 11.3 Solution

Question 1.
Show the following information by a percentage bar graph.

Division of standard 8ABCD
Number of students securing grade A45331015
Total number of students60554075

Solution:

Division of standard 8ABCD
Number of students securing grade A45331015
Total number of students60554075
Percentage of students securing grade A75%60%25%20%
Percentage of students not securing grade A25%40%75%80%
Maharashtra Board Class 8 Maths Solutions Chapter 11 Statistics Practice Set 11.3 1

Question 2.
Observe the following graph and answer the questions.
Maharashtra Board Class 8 Maths Solutions Chapter 11 Statistics Practice Set 11.3 2

  1. State the type of the bar graph.
  2. How much percent is the Tur production to total production in Ajita’s farm?
  3. Compare the production of Gram in the farms of Yash and Ravi and state whose percentage of production is more and by how much?
  4. Whose percentage production of Tur is the least?
  5. State production percentages of Tur and Gram in Sudha’s farm.

Solution:

  1. The given graph is a percentage bar graph.
  2. Percent of tur production to the total production in Ajita’s farm is 60%.
  3. Production of Gram in the farm of Yash = 50%
    Production of Gram in the farm of Ravi = 30%
    ∴ Difference in the production = 50% – 30% =20%
    ∴ Yash’s production of Gram is more and by 20%.
  4. Sudha’s percentage production of Tur is the least.
  5. Production percentages of Tur and Gram in Sudha’s farm are 40% and 60% respectively.

Question 3.
The following data is collected in a survey of some students of 10th standard from some schools. Draw the percentage bar graph of the data.

School1st2nd3rd4th
Inclination towards science stream90602516
Inclination towards commerce stream60202524

Solution:

School1st2nd3rd4th
Inclination towards science stream90602516
Inclination towards commerce stream60202524
Total number of students150805040
Percentage of students having inclination towards science stream60%75%50%40%
Percentage of students having inclination towards commerce stream40%25%50%60%
Maharashtra Board Class 8 Maths Solutions Chapter 11 Statistics Practice Set 11.3 3

Intext Questions and Activities

Question 1.
Compare and discuss a percentage bar diagram and a subdivided bar diagram. Use it to learn the graphs in the subjects like Science, Geography. (Textbook pg, no. 74)
Solution:
[Students should attempt the above activity on their own.]