Empirical Values MCQs (Multiple Choice Questions) PDF Download - 70

According to empirical rule, the mean and standard deviation interval that covers approximately 95.45% of data from a frequency distribution is

1. μ±σ
2. 2μ±2σ
3. 3μ±2σ
4. μ±2σ

The measures whose calculated values represents only some proportion of frequency distribution are classified as

1. measures of deciles systems
2. measures of momentum system
3. measures of percentile system
4. measures of moment system

If each value of frequency distribution is divided by total number of recorded observations in distribution then the resultant value is called

1. interval frequency distribution
2. percentage frequency distribution
3. nominal frequency distribution
4. ordinal frequency distribution

When the data is arranged, the middle value in the set of observations is classified as

1. median
2. mean
3. variance
4. standard deviation

If the frequencies widely varies between different classes, then the measure of central tendency must be used is

1. non-paired arithmetic mean
2. square of arithmetic mean
3. weighted arithmetic mean
4. paired arithmetic mean