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Analysis of Data — Practice Quiz

NIOS · Class 10 · Economics

Try a 4-question quiz on Analysis of Data for NIOS Class 10 Economics: tap an answer to check it and see why. 45 questions in the full chapter test.

45 questions28 flashcards3 formulas & key relations5 concepts

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Quick Quiz: Analysis of Data

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1

Using the direct method for the discrete series of number of children per family, what is the arithmetic mean when the total number of children is 420 and the total frequency is 140 families?

2

For the continuous series with class intervals 0-10, 10-20, 20-30, 30-40, 40-50, 50-60 and 60-70, and frequencies 23, 27, 40, 120, 40, 27 and 23, what is the arithmetic mean by the direct method?

3

In the continuous series with A = 25, N = 300, and Σfdx = 3000, what is the arithmetic mean by the shortcut method without step deviation?

4

In the continuous series with A = 25, N = 300, Σfdx' = 300, and c = 10, what is the arithmetic mean by the shortcut method with step deviation?

45 Questions·
multiple choicemultiple correcttrue false

Sample Questions

1multiple choice
3 marks

A group of 10 students scored 2, 7, 10, 8, 6, 3, 5, 4, 5 and 0 marks out of 10. What is the arithmetic mean?

Show answer

5

Add the marks: 2 + 7 + 10 + 8 + 6 + 3 + 5 + 4 + 5 + 0 = 50. Then divide by the number of students, 10. So the arithmetic mean = 50/10 = 5. The unit is marks.

2multiple choice
3 marks

For the discrete series of number of children per family, the values are 0, 1, 2, 3, 4, 5 and 6 with frequencies 13, 17, 20, 40, 20, 17 and 13. What is the arithmetic mean by the direct method?

Show answer

3

Compute Σfx = 0 + 17 + 40 + 120 + 80 + 85 + 78 = 420 and N = 140. Then mean = 420/140 = 3. The unit is children per family.

3multiple choice
3 marks

For the continuous series 0-10, 10-20, 20-30, 30-40, 40-50, 50-60 and 60-70 with frequencies 23, 27, 40, 120, 40, 27 and 23, what is the arithmetic mean if the class mid values are used and A = 25?

Show answer

35

The class mid values are 5, 15, 25, 35, 45, 55 and 65. Using the shortcut method without step deviation, Σfdx = 3000 and N = 300 when A = 25. So x̄ = 25 + 3000/300 = 35. The unit is marks.

4multiple choice
3 marks

If the arithmetic mean of 27 children among 10 families is calculated, what is the mean number of children per family?

Show answer

2.7

Arithmetic mean = total number of children / number of families = 27/10 = 2.7. The unit is children per family.

+41 more questions on Analysis of Data (NIOS Class 10 Economics)

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Frequently Asked Questions

What are the important topics in Analysis of Data for NIOS Class 10 Economics?
Key topics in Analysis of Data include Meaning of Analysis of Data and Central Tendency, Functions and Use of Averages, Arithmetic Mean: Formula and Basic Idea, Arithmetic Mean in Different Types of Series. Study these first, then practise questions on each for the NIOS Class 10 board exam.
How many practice questions are there for Analysis of Data?
There are 45 questions on Analysis of Data. Try the 4-question sample quiz on this page first; each answer shows an explanation when you tap it.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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