# RESEARCH METHODOLOGY

## STATISTICAL TECHNIQUES AND TOOLS

### CORRELATION COEFFICIENT COEFFICIENT OF DETERMINATION

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What shape is a normal distribution curve?
 A Half curve B Round curve C Bell curve D Square curve
Explanation:

Detailed explanation-1: -A normal distribution curve, when graphed out, typically follows a bell-shaped curve, hence the name. While the precise shape can vary according to the distribution of the population, the peak is always in the middle and the curve is always symmetrical.

Detailed explanation-2: -The normal distribution is also known as a Gaussian distribution or probability bell curve. It is symmetric about the mean and indicates that values near the mean occur more frequently than the values that are farther away from the mean.

Detailed explanation-3: -Normal (Gaussian) Distributions It is bell-shaped with a single peak in the center, and it is symmetrical. If the distribution is perfectly symmetrical with a single peak in the center, then the mean value, the mode, and the median will be all be the same.

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