Variance

Giving suitable examples, discuss the measures of dispersion

Leave a Comment / MDV-106 /

Introduction Measures of dispersion describe the spread or variability of a data set. While measures of central tendency (mean, median, and mode) give us the average or middle point, measures of dispersion show how much the data values deviate from that central point. Understanding dispersion is essential in social science and development research to interpret […]

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Suppose an investor is concerned about a business choice in which there are three prospects. The probability and returns are given below: Probability Returns 0.4 100 0.3 30 0.3 -30 What is the expected value of the uncertain investment? What is the variance?

Leave a Comment / MEC-101 /

Introduction Investment decisions often involve uncertainty. In such situations, investors rely on tools like expected value and variance to evaluate potential outcomes and associated risks. The expected value gives a measure of the average return one can anticipate, while the variance tells us how much the returns fluctuate around the average. In this answer, we

Suppose an investor is concerned about a business choice in which there are three prospects. The probability and returns are given below: Probability Returns 0.4 100 0.3 30 0.3 -30 What is the expected value of the uncertain investment? What is the variance? Read More »

Write short notes on the following: a) Statistical survey b) Application of Ratios c) Geometric Mean d) Variance

Leave a Comment / ECO-07 ELEMENTS OF STATISTICS /

Introduction In the study of statistics, several foundational concepts form the basis for data collection, analysis, and interpretation. Short notes on key terms such as statistical survey, application of ratios, geometric mean, and variance provide a snapshot of their importance and application in various fields. a) Statistical Survey A statistical survey is a method of

Write short notes on the following: a) Statistical survey b) Application of Ratios c) Geometric Mean d) Variance Read More »

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