Statistical Tools and Interpretation Class 11 MCQs Questions 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 = σ4
(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. | (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) |
| 5. Median | (e) Cost of living index. |
Answer
Answer:
| Column A | Column B |
| 1. | (c) Total of all values |
| 2. Formula of range | (d) |
| 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 =
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