Measures of Position of Ungrouped Data

The median of a given data set is also the ______.

• first quartile

• seventh decile

• second quartile

• None of the above.

What measure divides the distribution into ten equal parts?

• Median

• quartile

• decile

• percentile

The first quartile of the data set is equal to the ______.

• 5th decile

• 50th percentile

• 25th percentile

• 75th percentile

What is the median of the scores 6, 8, 11, 25, 15, 10, 2, 8, 16?

• 2

• 6

• 8

• 10

Using Tukey’s Method, what is the first quartile of the following set of values: 12, 15, 22, 23, 34, 8, 19, 17,18

• 12

• 12.5

• 13.5

• 15

From the given data set in item #5, which number is greater than the third quartile?

• 18

• 19

• 22

• 23

In the 2019 National Career Achievement Examination (NCAE), Aileen’s score in the Mathematics Ability Test is at 90th percentile. What does this mean?

• Aileen’s score is 90 points.

• Aileen scored higher than 89% of the examinees.

• Aileen is the 90th in position among all the examinees.

• Aileen scored higher than the other 90% of the examinees.

What is the fifth decile of the number of FB users?

• 37 million

• 38 million

• 38.5 million

• 40 million

What is the 80th percentile of the number of FB users?

• 76 million

• 89 million

• 130 million

• 140 million

Which country has greater number of users compared to the country in the 40th percentile?

• Bangladesh

• Columbia

• Turkey

• United Kingdom