# MCQ Questions for Class 11 Economics Unit 3 Statistical Tools and Interpretation with Answers

Question 1.

The most common measurement of central tendency is:

(a) Median

(b) Multiple

(c) Mean

(d) Weighted mean.

## Answer

Answer: (c) Mean

Question 2.

Division of one column in ten equal parts is called:

(a) Decile

(b) Quartile

(c) Percentile

(d) None.

## Answer

Answer: (a) Decile

Question 3.

Which of the following equation is correct:

(a) Anova = σ

(b) Anova = σ^{-2}

(c) Anova = σ^{4}

(d) Anova = √σ × 2.

## Answer

Answer: (b) Anova = σ^{-2}

Question 4.

Where is correlation multiple placed:

(a) Between 0 and + 1

(b) Between – 1 and 0

(c) Between – 1 and + 1

(d) None of these.

## Answer

Answer: (c) Between – 1 and + 1

Question 5.

Base year is:

(a) Comparison year

(b) Present year

(c) Any year

(d) One year previous to present year.

## Answer

Answer: (a) Comparison year

Fill in the blanks:

1. Rule of ……………………….. is supposed to be idle for creation of index.

## Answer

Answer: Fisher

2. Multiple is the value of column in which ……………………… comes repeatedly.

## Answer

Answer: Maximum

3. The value which divides the column into more than two parts is called ……………………………

## Answer

Answer: Division

4. ………………………. is the difference between maximum and minimum value.

## Answer

Answer: Range

5. …………………………. is the simple ray that shows relation between two values.

## Answer

Answer: Analogical relation

State true or false:

1. Cumulative frequency shows “less than” or “more than” of any sequence.

## Answer

Answer: True

2. 5 is the mode of the numbers 3, 4, 3, 5, 5, 3, 2.

## Answer

Answer: False

3. Range is found by adding highest value and smallest value.

## Answer

Answer: False

4. Money inflation is measured on changes of index number of whole sale market of weekly statement.

## Answer

Answer: True

5. High income leads high savings.

## Answer

Answer: True

Match the columns:

Column A | Column B |

1. \(\frac { Σx }{ N }\), here Σx is | (a) Positive or negative |

2. Formula of range | (b) Minimum effect of values |

3. Type of correlation | (c) Total of all values |

4. Consumer Price Index | (d) \(\frac { H-L }{ H+L }\) |

5. Median | (e) Cost of living index. |

## Answer

Answer:

Column A | Column B |

1. \(\frac { Σx }{ N }\), here Σx is | (c) Total of all values |

2. Formula of range | (d) \(\frac { H-L }{ H+L }\) |

3. Type of correlation | (a) Positive or negative |

4. Consumer Price Index | (e) Cost of living index. |

5. Median | (b) Minimum effect of values |

Answer in one word:

1. Graphic method of studying dispersion.

## Answer

Answer: Lorenz curve

2. Definite relation between two or more groups.

## Answer

Answer: Correlation

3. One which divides column in ten equal parts.

## Answer

Answer: Deciles

4. In India which index helps to measure average change in prices.

## Answer

Answer: Consumer Price Index

5. Saving is directly related to.

## Answer

Answer: Income

6. What is measure of central tendency?

## Answer

Answer: Measure of central tendency is the single value which represents the characteristics of the entire universe.

7. Which is the popular measure of central tendency?

## Answer

Answer: Arithmetic mean.

8. Define Arithmetic mean?

## Answer

Answer: It is defined as the sum of the values of all observations divided by the number of observations.

9. Find out mode from the following data:

7, 12, 8, 5, 9, 10, 9, 11, 96

## Answer

Answer: 9 is the number which is repeated maximum number of times. Hence, mode is 9.

10. Write the formula of weighted arithmetic mean?

## Answer

Answer: Weighted Arithmetic Mean = \(\frac{ΣWx}{ΣW}\)

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