Measures Of Central Tendency And Dispersion

100 Questions | By Sweetsalman123 | Last updated: Mar 22, 2022 | Total Attempts: 1740

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Measures Of Central Tendency And Dispersion - Quiz

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1.

Measures of central tendency for a given set of observations measures
- A.
  
  The scatterness of the observations
- B.
  
  The central location of the observations
- C.
  
  Both (i) and (ii)
- D.
  
  None of these.
2.

While computing the AM from a grouped frequency distribution, we assume that
- A.
  
  The classes are of equal length
- B.
  
  The classes have equal frequency
- C.
  
  All the values of a class are equal to the mid-value of that class
- D.
  
  None of these.
3.

Which of the following statements is wrong?
- A.
  
  Mean is rigidly defined
- B.
  
  Mean is not affected due to sampling fluctuations Ensues
- C.
  
  Mean has some mathematical properties
- D.
  
  All these
4.

Which of the following statements is true?
- A.
  
  Usually mean is the best measure of central tendency
- B.
  
  Usually median is the best measure'of central tendency
- C.
  
  Usually mode is the best measure of central tendency
- D.
  
  Normally, GM is the best measure of central tendency
5.

For open-end classification, which of the following is the best measure of central tendency?
- A.
  
  AM
- B.
  
  GM
- C.
  
  Median
- D.
  
  Mode
6.

The presence of extreme observations does not affect
- A.
  
  AM
- B.
  
  Median
- C.
  
  Mode
- D.
  
  Any of these.
7.

In case of an even number of observations which of the following is median ?
- A.
  
  Any of the two middle-most value
- B.
  
  The simple average of these two middle values
- C.
  
  The weighted average of these two middle values
- D.
  
  Any of these
8.

The most commonly used measure of central tendency is
- A.
  
  AM
- B.
  
  Median
- C.
  
  Mode
- D.
  
  Both GM and HM
9.

Which one of the following is not uniquely defined?
- A.
  
  Mean
- B.
  
  Median
- C.
  
  Mode
- D.
  
  All of these measures
10.

Which of the following measure of the central tendency is difficult to compute?
- A.
  
  Mean
- B.
  
  Median
- C.
  
  Mode
- D.
  
  Gm
11.

Which measure(s) of central tendency is(are) considered for finding the average rates:
- A.
  
  AM
- B.
  
  GM
- C.
  
  HM
- D.
  
  Both (ii)and(iii)
12.

For a moderately skewed distribution, which of he following relationship holds?
- A.
  
  Mean - Mode = 3 (Mean - Median)
- B.
  
  Median - Mode = 3 (Mean - Median)
- C.
  
  Mean - Median = 3 (Mean - Mode)
- D.
  
  Mean - Median = 3 (Median - Mode)
13.

Weighted averages are considered when
- A.
  
  The data are not classified
- B.
  
  The data are put in the form of grouped frequency distribution
- C.
  
  All the observations are not of equal importance
- D.
  
  Both (i) and (iii).
14.

Which of the following results hold for a set of distinct positive observations?
- A.
  
  AM >= GM >= HM
- B.
  
  HM >= GM >= AM
- C.
  
  AM > GM > HM
- D.
  
  GM > AM > HM
15.

When a firm registers both profits and losses, which of the following measure of central tendency cannot be considered?
- A.
  
  AM
- B.
  
  GM
- C.
  
  Median
- D.
  
  Mode
16.

Quartiles are the values dividing a given set of observations into
- A.
  
  Two equal parts
- B.
  
  Four equal parts
- C.
  
  Five equal parts
- D.
  
  None of these
17.

Quartiles can be determined graphically using
- A.
  
  Histogram
- B.
  
  Frequency Polygon
- C.
  
  Ogive
- D.
  
  Pie chart
18.

Which of the following measure(s) possesses (possess) mathematical properties?
- A.
  
  AM
- B.
  
  GM
- C.
  
  HM
- D.
  
  All of these
19.

Which of the following measure(s) satisfies (satisfy) a linear relationship between two variables?
- A.
  
  Mean
- B.
  
  Median
- C.
  
  Mode
- D.
  
  All of these
20.

Which of he following measures of central tendency is based on only fifty percent of the central values?
- A.
  
  Mean
- B.
  
  Median
- C.
  
  Mode
- D.
  
  Both (i) and(ii)
21.

If there are 3 observations 15, 20, 25 then the sum of deviation of the observations from their AM is
- A.
  
  0
- B.
  
  5
- C.
  
  -5
- D.
  
  None of these
22.

What is the median for the following observations? 5, 8, 6, 9, 11, 4.
- A.
  
  6
- B.
  
  7
- C.
  
  8
- D.
  
  None of these
23.

What is the modal value for the numbers 5, 8, 6, 4, 10, 15, 18, 10?
- A.
  
  18
- B.
  
  10
- C.
  
  14
- D.
  
  None of these
24.

What is the GM for the numbers 8, 24 and 40? Options : A. 24 B. 12 C. D. 10
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
25.

The harmonic mean for the numbers 2, 3, 5 is Options : A. 2.00 B. 3.33 C. 2.90 D.
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D