Chapter 14 Statistics Ex 14.4

Question 1.
The following distribution gives the daily income of 50 workers of a factory.
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 1
Convert the distribution above to a less than type cumulative frequency distribution, and draw its ogive.
Solution:
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 2
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 3

Question 2.
During the medical check-up of 35 students of a class, their weights were recorded as follows:
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 4
Draw a less than type ogive for the given data. Hence obtain the median weight from the graph and verify the result by using the formula.
Solution:
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 5
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 6
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 7

Question 3.
The following table gives production yield per hectare of wheat of 100 farms of a village.
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 8
Change the distribution to a more than type distribution, and draw its ogive.
Solution:
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 9
NCERT Solutions for Class 10 Maths Chapter 14 Statistics Ex 14.4 10