Jd Talk NCERT Solutions for Class 10 Maths NCERT Solutions For Class 10 Maths Chapter 14 Statistics Ex 14.2

NCERT Solutions For Class 10 Maths Chapter 14 Statistics Ex 14.2

Solutions for Ex  (Exercise) 14.2 Class 10 Maths

As we have learned in the previous class, in the tests given the polymer is the great one which has come the most frequently i.e. the observation which has the highest frequency. In CBSE NCERT chapter 14 ex 14.2 we will find the polymer of classified data. In this exercise, we will learn that there is more than one assuming that there is only one maximum frequency. We will limit the ex 14.2 maths class 10 to problems with only one polymer. We will try to explain this to you through example number 4. As shown in example number 4, how the number of levers in 10 cricket matches has been given by Akash whose polymer we will extract. ex 14.2 Example 4 gives the number of wickets and the number of cricket matches. You can take the polymer formula from your textbook where all the alphabets used in the formula are explained differently. Which is like this
h = measure of the square interval
l = lowest number of polymer class
f0 = frequency number of the square just before the polymer square
f1 = frequency number of polymer class
f2 = Frequency number of square coming right after polymer square

Ex 14.2 Class 10 Maths Question 1

The following table shows the ages of the patients admitted to a hospital for a year.

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

Solution for Ex 14.2 Class 10 Maths Question 1

Solution for Ex 14.2 Class 10 Maths Question 1

 

Ex 14.2 Class 10 Maths Question 2.

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

Determine the modal lifetimes of the components.

Solution for Ex 14.2 Class 10 Maths Question 2

Solution for Ex 14.2 Class 10 Maths Question 2

Ex 14.2 Class 10 Maths Question 3.

The following data gives the distribution of total monthly household expenditure of 200 families of a village. Find the modal monthly expenditure of the families. Also, find the mean monthly expenditure:

Solution for Ex 14.2 Class 10 Maths Question 3

Ex 14.2 Class 10 Maths Question 4.

The following distribution gives the state-wise teacher-student ratio in higher secondary schools of India. Find the mode and mean of this data. Interpret the two measures.

Solution for Ex 14.2 Class 10 Maths Question 4

Solution for Ex 14.2 Class 10 Maths Question 4

Ex 14.2 Class 10 Maths Question 5

The given distribution shows the number of runs scored by some top batsmen of the world in one-day international cricket matches.

Find the mode of the data.

Solution for Ex 14.2 Class 10 Maths Question 5

Solution for Ex 14.2 Class 10 Maths Question 5

Ex 14.2 Class 10 Maths Question 6

A student noted the number of cars passing through a spot on a road for 100 periods each of 3 minutes and summarised it in the table given below. Find the mode of the data:

Solution for Ex 14.2 Class 10 Maths Question 6

Solution for Ex 14.2 Class 10 Maths Question 6

 

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