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Statistics Ex 14.2 Solutions

Question - 1 : - The following table shows the ages of the patients admitted in a hospital during a year.

Answer - 1 : -
NCERT Solutions For Class 10 Maths Chapter 14 Statistics Ex 14.2 Q1
Find the mode and the mean of the data given above. Compare and interpret the two measures of central tendency.


Solution:
Statistics Class 10 Maths NCERT Solutions Ex 14.2 PDF Download Q1


Question - 2 : -

following data givesthe information on the observed lifetimes (in hours) of 225
electrical components:

Answer - 2 : -

Lifetime (in hours)

0-20

20-40

40-60

60-80

80-100

100-120

Frequency

10

35

52

61

38

29

Determine the modal lifetimes of the components.

Solution:
Ex 14.2 Class 10 Maths NCERT Solutions PDF Download Q2


Question - 3 : - The following data gives the distribution of total monthly household expenditure of 200
families of a village.

Answer - 3 : -

 Find the modal monthly expenditure of the families.Also, find the
mean monthly expenditure:

Expenditure

Number of families

1000-1500

24

1500-2000

40

2000-2500

33

2500-3000

28

3000-3500

30

3500-4000

22

4000-4500

16

4500-5000

7

Solution:
Exercise 14.2 Class 10 Maths NCERT Solutions Q3


Question - 4 : - The following distribution gives the state-wise teacher-student ratio in higher secondary schools of India.

Answer - 4 : -

 Find the mode and mean of this data. Interpret the twomeasures

No of Students per teacher

Number of states / U.T

15-20

3

20-25

8

25-30

9

30-35

10

35-40

3

40-45

0

45-50

0

50-55

2

Solution:
Chapter 14 Maths Class 10 NCERT Solutions Ex 14.2 PDF Download Q4
Chapter 14 Maths Class 10 NCERT Solutions Ex 14.2 PDF Download Q4.1


Question - 5 : -

The following tableshows the ages of the patients admitted in a hospital during a year:

Answer - 5 : -

Age (in years)

5-15

15-25

25-35

35-45

45-55

55-65

Number of patients

6

11

21

23

14

5

Find the mode and the mean of the data given above. Compare and interpret the two
measures of central tendency.

Solution

Question - 6 : -

The following datagives the information on the observed lifetimes (in hours) of 225
electrical components:

Answer - 6 : -

Lifetime (in hours)

0-20

20-40

40-60

60-80

80-100

100-120

Frequency

10

35

52

61

38

29

Determine the modal lifetimes of the components.

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