# Statistics

## Probability Solved Sums

There are 15 boys and 10 girls in the class. If three students are selected at random, what is the probability that 1 girl and 2 boys are selected? A. 1/40 B. 1/ 2 C. 21/46 D. 7/ 41 E. None of these The correct option is: C Solution: Total number of ways of selecting …

## Statistics for Business Decisions 2022

2022BUSINESS ADMINISTRATION- HONOURS : CALCUTTA UNIVERSITY Paper BBA-A202-C-3(Statistics for Business Decisions)Full Marks : 80 The mean, median, and standard deviation of a distribution are 45, 42, and 18 respectively, to find the skewness of the distribution. The formula for Pearson’s coefficient of skewness, which is a measure of the asymmetry of a distribution. A positive skew …

## Arithmetic Mean Solved Sums

Reference : Books of IGNOU

## INTRODUCTION TO STATISTICS

My blog contains study material on the subject business statistics. The study material is written and compiled from various books for the benefits of management students. BBA & MBA students from any universities can refer the material for making notes and examination preparation.

## Methods of measurement of correlation

Methods of measurement of correlation:  Quantification of the relationship between variables is very essential to take the benefit of study of correlation. For this, we find there are various methods of measurement of correlation, which can be represented as given below: Among these methods we will discuss only the following methods: Scatter Diagram Karl Pearson’s …

## Correlation Study material

Meaning: Correlation is a statistical technique to ascertain the association or relationship between two or more variables. Correlation analysis is a statistical technique to study the degree and direction of relationship between two or more variables. A correlation coefficient is a statistical measure of the degree to which changes to the value of one variable …