# Research Methodology - Statistical Techniques

LIS QUIZ SERIES
1. Select the less frequently used measures of central tendency:
1) Arithmetic mean
2) Median
3) Mode
4) Geometric mean
5) Harmonic mean
1,2
2,3
3,4
4,5

2. The sum of all observations divided by the number of observations is called as
Arithmetic mean
Median
Mode
Geometric mean

3. In a set of observations, the value which occurs with maximum frequency is called
Arithmetic mean
Median
Mode
Harmonic mean

4. In a set of observations, the value of the middlemost item when they are arranged in order of magnitude is called
Average
Median
Mode
Harmonic mean

5. The difference between the largest and the smallest observations is called
Standard deviation
Variance
Mean deviation
Range

6. The arithmetic mean of squares of deviations of observations from their arithmetic mean is called
Standard deviation
Variance
Mean deviation
Range

7. Which of the following is the positive square root of the variance?
Standard deviation
Variance
Mean deviation
Range

8. Coefficient of Variation is a
Measures of Central Tendency
Correlation
Regression Analysis
Measures of Dispersion

9. Which of the following is not a method of measuring correlation?
Pearson’s Product Moment Correlation
Scatter Diagram