Yogeshwar Wins Bronze Medal in Olympics 2012

India's Yogeshwar Dutt won the bronze in the men’s 60kg freestyle wrestling in an exciting bout against North Korea’s Jong Myong Ri late on Saturday. Yogeshwar was down in the first round, but came back in the next two to take India’s medal tally up.

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Introduction to Statistics

Statistics is a set of tools used to organize and analyze data. Data must either be numeric in origin or transformed by researchers into numbers. For instance, statistics could be used to analyze percentage scores English students receive on a grammar test: the percentage scores ranging from 0 to 100 are already in numeric form. Statistics could also be used to analyze grades on an essay by assigning numeric values to the letter grades, e.g., A=4, B=3, C=2, D=1, and F=0.

Employing statistics serves two purposes, (1) description and (2) prediction. Statistics are used to describe the characteristics of groups. These characteristics are referred to as variables. Data is gathered and recorded for each variable. Descriptive statistics can then be used to reveal the distribution of the data in each variable.

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