Question 15 Marks
Discuss the types of Central Tendency.
Answer
1. Median:
2. Moderator:
View full question & answer→- First preliminary information is obtained if required for any study.
- Some units are covered to get information.
- The set of all these units is called the 'Population of the study'.
- The total number of units in this aggregate is called the 'Size of the population'.
- The information collected is tabulated using a questionnaire.
- The statistics in this table have some features.
- This information is verified using statistical methods.
- Such a probe finds a measure that summarizes observations of information.
- In the observations of the data the value representing this measure is between or in the middle of the minimum and maximum values.
- Hence they are called ‘intermediate conditions’.
- They can also be called 'average'.
- There are three measurements of averages in general usage:
1. Median:
- The value obtained by summing all the observations of the information and dividing that sum by the total number of observations is called median.
- Medium Search Formula:
2. Moderator:
- Intermediate position is a method of measuring.
- It simply means 'in the middle' or 'in the middle' measure.
- The size of the median is in the middle of all observations.
- Hence it is known as the moderator.
- The median is the value that divides the total observations into two equal parts.
- Moderator search formula:
- M = {(n + 1) / 2}, the value of the score
- This formula is used when the observations are in even numbers.
- But if the number of observations is odd, the following formula is used:
- M = (value of observation of m + (m + 1) value of observation) / 2
- The value of an observation that is repeated more than once in a statistical observation is called a multiplier.
- It is denoted by the English alphabet 'Z'.
- There may be more than one observation in response.
- Numerical information that has a single polymer is called polynomial information and information that has two polymers is called binary-polynomial information.