What is Statistics in Frequency Distribution?
Statistics deals with a set of data. Sometimes we may be interested in finding the most favorite or frequently used item from a set of data.
Answer: The concept that deals with data analysis, interpretation, and presentation of data in a more meaningful way is statistics in the frequency distribution.
There are 5 major terms used and calculated as statistics in the frequency distribution.
Explanation:
1. Mean (Average of the data) =∑xi / N
xi - refers to all the terms in the data set
N - refers to the total number of terms
2. Median - The value separating the higher half from the lower half.
If 'n' is odd, Median = (n+1)th / 2 value
If 'n' is even , Median = (1 / 2) {(n/2)th term + (n2+1)th term}
n - number of values in the data set.
3. Mode = The most frequently occurring value in a data set.
4. Variance = σ2 =∑(xi − x)2N
5. Standard Deviation = √Variance or √∑(xi − x)2N