Module 2 Statistics

Question 1

How to find lower quartile for discrete data

Answer 1

Divide n by 4
If is a whole number, lower quartile is halfway between this data point and the one above
If is not a whole number, round up and pick this data point.

Question 2

How to find upper quartile for discrete data

Answer 2

Find 3/4 of n
If is a whole number, upper quartile is halfway between this data point and the one above.
If is not a whole number, round up and pick this data point.