which of the following meaures of central tendency is called postional average
Answers
Answer:
The Median is also known as a positional average. ... It means that when the data are arranged, median is the middle value if the number of values is odd and the mean of the two middle values, if the numbers of values is even
Step-by-step explanation:
Median is the value which occupies the middle position when all the observations are arranged in an ascending/descending order. It divides the frequency distribution exactly into two halves. Fifty percent of observations in a distribution have scores at or below the median. Hence median is the 50th percentile.[2] Median is also known as ‘positional average’.[3]
It is easy to calculate the median. If the number of observations are odd, then (n + 1)/2th observation (in the ordered set) is the median. When the total number of observations are even, it is given by the mean of n/2th and (n/2 + 1)th observation.[2]
Advantages
It is easy to compute and comprehend.
It is not distorted by outliers/skewed data.[4]
It can be determined for ratio, interval, and ordinal scale.