Sandeep Garg Class 11 Economics Solutions Chapter 1 Organisation of Data is illustrated by the professional economic educator from the contemporary edition of Sandeep Garg Economics Class 11 textbook solutions.
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There are numerous concepts in economics, but here we provide you with the solution from the Organisation of Data, which will be convenient for the students to score well in the board exams.
Sandeep Garg Solutions Class 11 – Chapter 1
Question 1
Mentioned below are the marks acquired by 40 employees during their assessment. Arrange the marks in ascending and descending order.
| 10 | 15 | 18 | 15 | 9 | 6 | 5 | 3 | 9 | 6 |
| 22 | 15 | 12 | 20 | 1 | 5 | 6 | 4 | 10 | 3 |
| 21 | 12 | 11 | 19 | 3 | 10 | 10 | 26 | 19 | 10 |
| 10 | 17 | 28 | 22 | 5 | 21 | 17 | 8 | 9 | 11 |
Answer:
Marks in Ascending Order:
1,3,3,3,4,5,5,5,6,6,6,8,8,9,9,10,10,10,10,10,10,11,11,12,12,15,15,15,17,17,18,19,19,20,21,21,22,22,26,28
Marks in Descending Order:
28,26,22,22,21,21,20,19,19,18,17,17,15,15,15,12,12,11,11,10,10,10,10,10,10,9,9,8,8,6,6,6,5,5,5,4,3,3,3,1
Question 2
Students height in inches for 36 students are given below. Arrange the following data in an individual frequency sequence.
| 60 | 72 | 68 | 68 | 58 | 55 | 50 | 72 | 55 | 50 | 66 | 66 |
| 62 | 55 | 66 | 66 | 58 | 72 | 72 | 60 | 55 | 60 | 55 | 58 |
| 60 | 66 | 72 | 72 | 60 | 68 | 55 | 58 | 65 | 60 | 68 | 55 |
Answer:
In the form of frequency distribution, the given data can be arranged as follows.
| Heights (in inches) | Marks | Frequency |
| 50 |  | 2 |
| 55 | | 7 |
| 58 | | 4 |
| 60 | | 6 |
| 62 | | 1 |
| 65 | | 1 |
| 66 | | 5 |
| 68 | | 4 |
| 72 | | 6 |
| (sum f) = 36 |
Question 3
Find out the missing class interval.
| Class-Interval | Below 20 | 20−50 | 50−90 | 90−140 | More than 140 |
| Frequency | 8 | 11 | 15 | 3 | 5 |
Answer:
In the above-mentioned question, the class interval has a different width. Therefore, the missing class interval cannot be established.
Question 4
Transfer given below cumulative frequency series to simple frequency series.
| Marks | No. of Students |
| Less than 10 | 12 |
| Less than 30 | 19 |
| Less than 50 | 26 |
| Less than 70 | 48 |
| Less than 90 | 57 |
Answer:
The cumulative frequency ‘less than’ is displayed in ‘simple frequency distribution’ form.
| Class-Interval | Frequency |
| 0 – 10 10 – 30 30 – 50 50 – 70 70 – 90 | 12 19 − 12 = 7 26 − 19 = 7 48 − 26 = 22 57 − 48 = 9 |
Question 5
From the following data, arrange a frequency distribution table with classes 10-20, 20-30, etc.
| 25 | 10 | 12 | 26 | 10 | 32 | 36 | 31 | 41 | 55 |
| 22 | 31 | 36 | 38 | 25 | 11 | 12 | 25 | 42 | 48 |
| 47 | 37 | 45 | 54 | 42 | 35 | 37 | 32 | 65 | 75 |
Answer:
In the form of frequency distribution, the given data can be arranged as follows.
| *Class Interval | Tally Marks | Frequency |
| 10-20 | | 5 |
| 20-30 | | 5 |
| 30-40 | | 10 |
| 40-50 | | 6 |
| 50-60 | | 2 |
| 60-70 | | 1 |
| 70-80 | | 1 |
| (sum f) = 30 |
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