Quartile of Grouped Data

Find N

• 40

• 50

• 55

• 60

What is the class interval of First Quartile class?

• 5 - 7

• 8 - 10

• 11 -13

• 14 - 16

What is the frequency of Q₁ ?

• 9

• 10

• 12

• 14

What cumulative frequency to be used in solving Q₁?

• 10

• 20

• 34

• 46

What is the value of First Quartile?

• 6

• 7.5

• 9

• 9.5

The 3rd Quartile will fall into __ - __ class interval.

The number of students under Q₃ class is __.

What is the lower boundary of 3rd Quartile class?

__ is the cumulative frequency before the Q3 class.

What is the value of 3rd Quartile?

• 15.25

• 16.25

• 18

• 18.5