# Research Methodology - Statistical Techniques

**1. Select the less frequently used measures of central tendency:**

1) Arithmetic mean

2) Median

3) Mode

4) Geometric mean

5) Harmonic mean

**2. The sum of all observations divided by the number of observations is called as**

**3. In a set of observations, the value which occurs with maximum frequency is called**

**4. In a set of observations, the value of the middlemost item when they are arranged in order of magnitude is called**

**5. The difference between the largest and the smallest observations is called**

**6. The arithmetic mean of squares of deviations of observations from their arithmetic mean is called**

**7. Which of the following is the positive square root of the variance?**

**8. Coefficient of Variation is a**

**9. Which of the following is not a method of measuring correlation?**

**10. A: An analysis of the co-variation of two or more variables is usually called correlation.**

B: Correlation coefficient is the measure to find out the extent or degree of relationship between two variables.

B: Correlation coefficient is the measure to find out the extent or degree of relationship between two variables.