MATHEMATICS 10 - Measures of Position on Quartile for ungrouped

What is the first quartile (Q₁) of a dataset?

• The median of the dataset.

• The value below which 25% of the data falls.

• The value below which 50% of the data falls.

• The largest value in the dataset.

Given the dataset: 5, 8, 10, 12, 14, 17, 20, 25, 30, 35, what is the first quartile (Q₁)?

• 10

• 12

• 14

• 8

Which of the following measures where exactly 25% of the distribution or data set are below it?

• First Quartile

• Second Decile

• Third Quartile

• Seventh Decile

In a dataset of 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, what is the third quartile (Q₃)?

• 39

• 30

• 33

• 36

Which of the following represents the value below which 75% of the data falls?

• Third Quartile

• Second Quartile

• First Quartile

• Fourth Quartile