Quartile (Grouped Data)

It is a measure of position that divides the distribution into ten equal parts.

• Mean

• Quartile

• Deciles

• Percentile

The 3^rd Quartile is also known as _______.

• Lower Quartile

• Middle Quartile

• Upper Quartile

• Class Mark

What is the lower boundary of the class score 28-36?

• 28.5

• 27.5

• 36.5

• 35.5

Quartiles divide the distribution into how many equal parts?

• 2

• 4

• 10

• 100

What is the value of i in the class score 28-36?

• 6

• 7

• 8

• 9

If the lower quartile is 25.56, what % of the students have scores 25.56 and below?

• 10%

• 20%

• 25%

• 75%

Let N = 60 and upper quartile is 56.64, how many students have scores 56.64 and below?

• 15

• 35

• 45

• 55

If your grade belongs to Q3, what % of the students have grades better than yours?

• 10%

• 25%

• 50%

• 75%

In the given data, on what class interval does Q1 located?

• 5-9

• 10-14

• 15-19

• 20-24

In the given data, what is the frequency of the lower quartile class?

• 2

• 3

• 7

• 5