In this chapter, we provide RS Aggarwal Solutions for Class 10 Chapter 9 Mean, Median, Mode of Grouped Data Ex 9 C Maths for English medium students, Which will very helpful for every student in their exams. Students can download the latest RS Aggarwal Solutions for Class 10 Chapter 9 Mean, Median, Mode of Grouped Data Ex 9 C Maths pdf, free RS Aggarwal Solutions Class 10 Chapter 9 Mean, Median, Mode of Grouped Data Ex 9 C Maths book pdf download. Now you will get step by step solution to each question.
| Textbook | NCERT |
| Class | Class 10 |
| Subject | Maths |
| Chapter | Chapter 9 |
| Chapter Name | Mean, Median, Mode of Grouped Data |
| Exercise | 9 C |
| Category | RS Aggarwal Solutions |
RS Aggarwal Solutions Class 10 Chapter 9 Mean, Median, Mode of Grouped Data Ex 9C
Question 1:
As the class 50 – 60 has maximum frequency, so it is the modal class:
Hence, mode = 53.33
Question 2:
As the class 40 – 50 as maximum frequency, so it s modal class.
Hence, mode = 43.75 years
Question 3:
As the class 26 – 30 has maximum frequency so it is modal class
Hence, mode = 28.5
Question 4:
As the class 1500 – 2000 has maximum frequency, so it os modal class
Hence the average expenditure done by maximum number of workers = Rs. 1820
Question 5:
As the class 5000 – 10000 has maximum frequency, so it is modal class
Hence, mode = Rs. 7727.27
Question 6:
As the class 15 – 20 has maximum frequency so it is modal class.
Hence mode = 17.3 years
Question 7:
As the class 85 – 95 has the maximum frequency it is modal class
Hence, mode = 85.71
Question 8:
The given series is converted from inclusive to exclusive form and on preparing the frequency table, we get
| Class | Frequency |
| 0.5 – 5.5 | 3 |
| 5.5 – 10.5 | 8 |
| 10.5 – 15. 5 | 13 |
| 15.5 – 20.5 | 18 |
| 20.5 – 25. 5 | 28 |
| 25.5 – 30.5 | 20 |
| 30.5 – 35.5 | 13 |
| 35.5 – 40.5 | 8 |
| 40.5 – 45.5 | 6 |
| 45.5 – 50.5 | 3 |
As the class 20.5 – 25.5 has maximum frequency, so it is modal class
Hence, mode = 23.28
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