QUARTILES FOR GROUPED DATA

What will be the value of k if the total frequency is 60?

• 1

• 2

• 4

• 6

What is the class width (i) if one of the class interval is 18-26?

• 9

• 12

• 15

• 18

What is the class mark (X) of the class interval 18-26?

• 18

• 20

• 22

• 24

What is the value of the lower boundary in the class interval 18-26?

• 17.5

• 18.5

• 25.5

• 26.5

Using the table and the highlighted part what could be the value of CF_b?

• 3

• 9

• 14

• 22

Using the table what could be the F_Q3? [Hint: compute first the (K/4)(N)]

• 5

• 6

• 8

• 10

What is the class width (i) of the given table?

• 3

• 4

• 5

• 6

Using the table, what is the value of Q₁?

• 22

• 22.5

• 22.7

• 23

Using the table, what is the value of Q₃?

• 38

• 38.5

• 39

• 39.5

Supposed the value of quartile 2 in the table is 32, what does it mean?

• 50% of the students got 32 and below

• 50% of the students got scores which is above 32

• students with score of 33 surpasses 50% of his/her classmates

• all of the above