CBSE Class 10 Maths Statistics RD Sharma Solutions
Maths can be a tricky subject especially if you are not practising consistently. However, RD Sharma Solutions for Class 10 Chapter 7 comes to rescue for students. In other words, it is all you need to brush up the mathematical concepts and formulas. Statistics is an interesting chapter which you will learn in Class 10 Maths. It covers topics which come in handy in daily life like mean, median, mode, cumulative frequency graph and much more. Thus, RD Sharma Solutions for Class 10 Maths Chapter 7 will be beneficial in studying this chapter efficiently.
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RD Sharma Solutions for Class 10 Chapter 7 serve as the perfect study material to learn about this chapter. Statistics is a complex topic which requires a thorough understanding. Thus, these solutions will be able to provide you with the same. You will learn how to find the mean, median and mode of grouped data. Moreover, you will also become familiar with the concept of a cumulative frequency graph of a frequency distribution.
Sub-topics covered under RD Sharma Solutions for Class10 Maths Chapter 7
All the Exercise questions with solutions in Chapter 7 – Statistics are given below:
• Class 10 Chapter 7 Statistics Exercise 7.1
• Class 10 Chapter 7 Statistics Exercise 7.2
• Class 10 Chapter 7 Statistics Exercise 7.3
• Class 10 Chapter 7 Statistics Exercise 7.4
• Class 10 Chapter 7 Statistics Exercise 7.5
• Class 10 Chapter 7 Statistics Exercise 7.6
Solved Examples from RD Sharma Class 10 Solutions – Chapter 7
Question 1: How do you find the Median in Statistics?
Answer: Median refers to the measure of central tendency that gives the value of the middle-most observation in data. Thus, when we have ungrouped data, start by arranging the data values of the observation in ascending order. So, if n refers to odd, then your median will be (n+1)/2 th observation.
Question 2: Find the mode of the following data:
120,110,130,110,120,140,130,120,140,120.
Answer: Let us first form the frequency table for the given data as given below:
Value xi: 110 120 130 140
Frequency (fi): 2 4 2 2
We observe that the value 120 has the maximum frequency.
Hence, the mode or modal value is 120
Question 3: Find the value of x, if the mode of the following data is 25.
25,20,25,18,14,15,18,16,20,25,20,x,18
Answer: The frequency table of the given data is as given below:
Value (xi): 141516182025x
Frequency (fi): 1 3 1 3 3 3 1
It is given that the mode of the given data is 25. So, it must have the maximum frequency. That is possible only when x=25.
Therefore. x=25.
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