F4 Chapter 6: Statistics

Question 1

What is modal class?

Answer 1

Modal class is the class with highest frequency

Question 2

How to find mean from grouped data?

Answer 2

Formula: £fx/£f
               fx= Total of all Midpoint of class 
                     interval x Frequency                  
               f= Total number of frequency

Question 3

How to find mode from histogram?

Answer 3

1. Determine modal class
2.

Question 4

How to find mean, mode and median from ungrouped data?

Answer 4

Mean: £x/N
          x= Total frequency of X
          N= Total number of X
Mode: The data with the highest frequency
Median: The data in the middle