Class 8 MAHARASHTRA STATE TEXTBOOK BUREAU Solutions Maths Chapter 11: Statistics
Statistics Exercise Ex. 11.1
Solution 1
≈ 2
∴ The average number of trees planted 2 as number of trees is always in integer.
Solution 2
(1)
2 families use 45 units electricity.
(2)
The score with frequency of 5 is 75.
(3)
N = 25 and ∑fixi = 1425
(4)
The mean of electricity used by each family in the month of May is 57.
Solution 3
Solution 4
Statistics Exercise Ex. 11.2
Solution 1
(1) sub divided bar graph
(2) Vaishali saved Rs. 600 in the month of April.
(3) The total savings of Saroj in the month of March is Rs. 400 and in the month of April is Rs. 400 hence, total is 400 + 400 = Rs. 800
(4) Savita's total savings = Rs. 1000, Megha's total savings = Rs. 500
Difference between them is 1000 - 500 = Rs. 500
Hence, Savita saved Rs. 500 more than Megha.
(5) Megha's savings in the month of April is the least i.e. Rs. 200.
Solution 2
Solution 3
Solution 4
Statistics Exercise Ex. 11.3
Solution 1
Solution 2
(1) Percentage bar graph
(2) The Tur production is 60% of total production in Ajita's farm.
(3) The production of Gram in the farms of Yash is 50 and Ravi is 70.
Hence, Ravi's percentage of production is more than Yash by 20%.
(4) Sudha's percentage of production of Tur is least i.e. 40%
(5)The production percentage of Tur in Sudha's farm is 40% and gram is 60%.
Solution 3
