Chapter Exam

Chapter 2 ECONOMICS : Dispersion Correlation and Index Numbers — Online MCQ Test

Q: Which of the following is considered an absolute measure of dispersion?

Answer: B. Standard deviation — Standard deviation is an absolute measure of dispersion as it is expressed in the same units as the original data, unlike coefficients which are ratios.

Q: The range is defined as the difference between:

Answer: B. Maximum and minimum values — Range is calculated by subtracting the smallest value from the largest value in a data set.

Q: If the value of correlation coefficient (r) is -1, the correlation is said to be:

Answer: B. Perfectly negative — A correlation coefficient of -1 indicates a perfect inverse relationship between the variables.

Q: Calculate the range if the maximum value is 85 and the minimum value is 20.

Answer: A. 65 — Range = Maximum - Minimum. So, 85 - 20 = 65.

Q: Given Variance = 144, what is the Coefficient of Variation if the Mean is 60?

Answer: A. 20% — Standard deviation = sqrt(144) = 12. CV = (SD/Mean) * 100 = (12/60) * 100 = 20%.

ECONOMICS · CLASS 12 INTER II YEAR · Andhra State Board

Practice Chapter 2 ECONOMICS : Dispersion Correlation and Index Numbers with a free chapter-wise online MCQ test for Andhra State Board CLASS 12 INTER II YEAR ECONOMICS. This chapter covers: This chapter details measures of dispersion Karl Pearson coefficient of correlation Spearman rank correlation and index numbers construction and applications.. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 2 ECONOMICS : Dispersion Correlation and Index Numbers — Important Questions & Answers (FAQ)

Frequently asked questions from Andhra State Board CLASS 12 INTER II YEAR ECONOMICS — Chapter 2 ECONOMICS : Dispersion Correlation and Index Numbers, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is considered an absolute measure of dispersion?

A. Coefficient of variation
B. Standard deviation ✓
C. Coefficient of range
D. Coefficient of quartile deviation

Answer: B. Standard deviation
Standard deviation is an absolute measure of dispersion as it is expressed in the same units as the original data, unlike coefficients which are ratios.

The range is defined as the difference between: