Unit 3: Numerical Descriptive Measures; Measures Of Central Tendency For Grouped Data

Question 1

It is the tabular arrangement of the given data by using categories or classes and their corresponding frequencies.

Answer 1

Frequency distribution table

Question 2

It determines the number of observation falling to each class interval.

Answer 2

Frequency

Question 3

It determines the proportion of observation in the particular class interval relative to the total observation in the set.

Answer 3

Relative frequency

Question 4

This is calculated by adding the number of observation in each class interval to the number of observation in the class interval above, starting to the second class interval onward

Answer 4

Cumulative frequency

Question 5

This calculated by adding the relative frequency in each class interval to the relative frequency in the class interval above, starting also from the second class interval onwards.

Answer 5

Cumulative relative frequency

Question 6

It can be computed by adding the lower bound of the interval plus the upper bound of it then divide by 2.

Answer 6

Mid point