Chapter 11.2, Problem 16HP

To determine

To find: The difference between positively skewed, negatively skewed and symmetric sets of data with examples.

Answer to Problem 16HP

The difference between positively skewed, negatively skewed and symmetric sets of data with examples is discussed.

Explanation of Solution

For Symmetrical distribution,

In this type of distribution, mostly the data and the mean lies at the center. The standard deviation and the mean are used to describe the data for the distribution.

For Example: The number of customers in the restaurant for other time is same (say 9 AM to 3 PM). Only there is one peak which is at lunch time usually 12 noon.

For Skewed distribution,

In this type of distribution, the data can be on the left and on the right.

For example: The score of students. When the difficulty level of exam is high, then most of the students score lower marks which means positively skewed. Only few students which are intelligent got higher marks.When the difficulty level of exam is easy, then most of the students score higher marks which means negatively skewed.

Thus, the difference between positively skewed, negatively skewed and symmetric sets of data with examples is discussed.