Question

Q2. Which of the following is true about mean?
A It occurs most frequently
B
It divides observations into two equal parts.
C
It is representative of the whole group.
D
It is the sum of observations.​

Answer 1

Answer:

it is the sum of the observations

Answer 2

The true statement is that the mean is representative of the whole group. (option c)

• Mean is defined as the arithmetic average of observations of given data.
• i.e. sum of all observations/number of observations.
• It is a measure of the central tendency of the data.
• For skewed data, the mean is not necessarily located at the middle always, it can be shifted to the right (positively skewed) or to the left(negatively skewed).