What are the various methods one can use to identify the sha

What are the various methods one can use to identify the shape of data distribution collected for research study? Why it is important to know the shape of distribution? How it can be used in decision making? Provide examples other than those already posted in class.

Solution

To identifying the shape of the distribution data can be the size of the tails or the number of the high and low points.
When the shape of the curve has short tails, the distribution can be called normal distribution, called the bell curve

If the distribution has no tails then the distribution is flat. If the tails go out exponentially, then the distribution is called an exponential distribution.

Bimodal distribution deals with the high points of the curve, having two high points rather than one.

The use of histograms help as well. A histogram is a A graphical representation, similar to a bar chart instructure, that organizes a group of data points into user-specified ranges.

The number and shapes of mounds and tails can tell a researcher where the answers lie.The importance of the shape of the curve tells you if the distribution is normal or skewed or discontinuous.

Eg:

Teachers can tell how much her students are garnering the teachings by where the hump of the curve resides. If most students reside in the 90th percentile or A range than the teacher knows that the students are understanding the information.Conversely if the hump resides in the 50th percentile or F range than the teacher will know that the class may be lost on the information