Download App

Organisation of Data — Economics STD 11 Commerce — Question

CBSE BoardEnglish MediumSTD 11 CommerceEconomicsOrganisation of Data6 Marks
Question
Explain the ‘exclusive’ and ‘inclusive’ methods used in classification of data.
✓

Answer

There are two methods of classifying data into class intervals.
  1. Exclusive method: Under this method the upper limits of one class is the lower limits of the next class. In this way continuity of the data is maintained. E.g. class intervals are 0-5, 5-10, 10-15 and so Now 5 is coming twice so is 10 and 15. So the upper limit of the class is excluded, means if a student has obtained 5 marks he is not included in the first group i.e. 0-5, but in the second i.e. 5-10.
  2. Inclusive method: Under this method upper limits of the class interval are also included in that class. The class interval will be made like 0-4, 5-9, 10-14 and so 0 This does not exclude the upper class limit in a class interval. Both class limits upper and lower limits are parts of the class interval.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "6 Marks Question" from Organisation of Data→Organisation of Data — all question types→Economics STD 11 Commerce question papers→CBSE Board STD 11 Commerce question papers→CBSE Board question paper generator→

Similar questions

State the major steps involved in the construction of wholesale price index numbers.
→
Read the following hypothetical information carefully and answer the questions 1-6 on the basis of the same:
Output (Units)Price (₹)Total Revenue (₹)Marginal Revenue (₹)
1101010
2-188
3824-
47-4
1. At 2nd unit of output sold, average revenue will be ____________.       (Fill up the blank with correct alternative)
(a) 4
(b) 9
(c) 16
(d) 36

2. At 3rd unit of output sold, marginal revenue will be ____________.     (Fill up the blank with correct alternative)
(a) 4 
(b) 6
(c) 16
(d) 24

3. Which concept of revenue is called price?          (Choose the correct alternative)
(a) Total revenue
(b) Average revenue
(c) Marginal revenue
(d) None of these

4. Identify the correct formula to calculate Marginal Revenue. (Choose the correct alternative)
(a) $MR _{ n }= TR _{ n }- TR _{ n -1}$
(b) $MR =\frac{ TR }{ Q }$
(c) $MR =\frac{\Delta TR }{\Delta Q }$
(d) Both (a) and (c)

5. Read the following statements carefully and choose the correct alternative among those given below:
Statement 1: AR is the rate at which output is sold.
Statement 2: When MR is zero, TR is also zero.
Alternatives:
(a) Both the statements are true
(b) Both the statements are false
(c) Statement 1 is true and Statement 2 is false
(d) Statement 2 is true and Statement 1 is false

6. At 4th unit of output sold, total revenue will be ____________.  (Fill up the blank with correct alternative)
(a) 3
(b) 11
(c) 28
(d) 32
→
Compute mode of the following series:
Mid-values
5
10
15
20
25
30
35
40
45
Frequency
7
13
19
24
32
28
17
8
6
→
Following table gives the distribution of companies according to the size of capital. Using step deviation method, find out the mean size of the capital of a company.
Capital (₹ in lakh)
Less than 5
Less than 10
Less than 15
Less than 20
Less than 25
Less than 30
Number of Companies
20
27
29
38
48
53
Hint: In the above problem, cumulative frequenices are given, we first find the simple frequencies and thereafter we will calculate arithmetic mean.
→
Find the mean deviation and its coefficient from the given data.
Class lnterval Frequency (f)
17.5-22.5 2
22.5-27.5 4
27.5-32.5 6
32.5-37.5 8
37.5-42.5 6
42.5-47.5 4
47.5-52.5 2
52.5-57.5 2
→
The following table shows the distribution of 105 families according to their expenditure per week. Number of families corresponding to the expenditure groups ₹ 10-20 and ₹ 30-40 are missing from the table. The median and mode for the distribution are ₹ 25 and ₹ 24, respectively. Calculate the missing frequencies.
Elpenditure (in ₹)
0-10
10-20
20-30
30-40
40-50
Number of Families
15
?
27
?
15
→
Calculate Coefficient of correlation using step deviation method:
X $30$ $40$ $60$ $70$ $100$
Y $90$ $110$ $140$ $150$ $160$
→
Construct a pie-diagram from the following table:
Items
Agriculture
Industry
Transport
Administration
Banking
Percentage
40
21
19
13
07
→
Calculate coefficient of correlation between age group and rate of mortality from the following data:
Age group
0-20
20-40
40-60
60-80
80-100
Rate of mortality
350
280
540
760
900
→
Draw a histogram of the following data:
Age (in years)
0-10
10-20
20-30
30-40
40-50
50-70
70-100
No. of Persons
5
15
18
22
35
30
15
→