Assignment-2

Any measure indicating the centre of a set of data, arranged in an increasing or decreasing order of magnitude, is called a measure of:

• Skewness

• Symmetry

• Central Tendency

• Dispersion

The total of all the observations divided by the number of observations is called:

• Standard Deviation

• Correlation

• Index Number

• Arithmetic Mean

Step deviation method or coding method is used for computation of the:

• Weighted Mean

• Arithmetic Mean

• Geometric Mean

• Harmonic Mean

If the arithmetic mean of 20 values is 10, then sum of these 20 values is:

• 10

• 200

• 20

• 20+10

A distribution with two modes is called:

• Unimodal

• Bimodal

• Multimodal

• Normal

What is the median of the sample 5, 5, 11, 9, 8, 5, 8 ?

• 5

• 6

• 8

• 9

The scatter in a series of values about the average is called:

• Central Tendency

• Dispersion

• Correlation

• Regression

Which of the following is an absolute measure of dispersion?

• Coefficient of variation

• Coefficient of dispersion

• Coefficient of skewness

• Standard Deviation

If the dispersion is small, the standard deviation is:

• Large

• Zero

• Small

• Negative

Standard deviation is always calculated from:

• Mean

• Median

• Mode

• Lower Quartile