IAS - S1 - Interpolation

Which of the following is not a measure of position?

• Decile

• Interquartile Range

• Quartile

• Percentile

It is the measure of position that divides the distribution into 100 equal parts

• Percentile

• Decile

• Quartile

• Interquartile Range

It is the measure of position that divides the distribution into 4 equal parts

• Percentile

• Decile

• Quartile

• Interquartile Range

It is can be solved by subtracting the lower quartile from the upper quartile.

• Percentile

• Decile

• Quartile

• Interquartile Range

Q3 represents what percentage of the distribution?

• 75%

• 50%

• 30%

• 25%

2 4 6 8 10 12 14 16 18 20.

What is Q2?

• 10

• 11

• 12

• 13

What is the upper quartile in the distribution?

80, 85, 86, 90, 93, 95, 96

• 85

• 90

• 95

• 96

The summative scores of selected Grade 10 students are:

9, 12, 19, 10, 26, 24, 17, 15, 30, 17, 5, 9, 15, 8, 17, 12, 15, 20, 21

How many students got a score below 10?

• 4

• 5

• 6

• 7

• 6

• 8

• 9

• none of these

What is the IQR if Q1 = 45 and Q3 = 65

• 20

• 25

• 30

• 35