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Please be specific with regard to query. Please state the question number that you need to ask. Also you are requested to post different questions in different thread.
However, herein, we are providing answers to two of your questions.
Part A - Ans 1) Arithematic mean is the most commonly used measure of central tendency. It is the simplest of all the measures. Algebraically, it is calculated by divind the sum of the values of items in the series with the total number of items.
Ans 2) Quartile deviation is one of measure of dispersion that is useful in open-ended distributions.
Please be specific with regard to query. Please state the question number that you need to ask. Also you are requested to post different questions in different thread.
However, herein, we are providing answers to two of your questions.
Part A - Ans 1) Arithematic mean is the most commonly used measure of central tendency. It is the simplest of all the measures. Algebraically, it is calculated by divind the sum of the values of items in the series with the total number of items.
Ans 2) Quartile deviation is one of measure of dispersion that is useful in open-ended distributions.