Quartile

What is the median age of a group of students whose ages are 14, 15, 16, 18, 20, 20, 21?

• 15

• 16

• 18

• 20

If the range of a set of scores is 14 and the lowest score is 7, what is the highest score?

• 21

• 24

• 14

• 7

Which measure of central tendency is generally used in determining the size of the most saleable shoes in a department store? (It is the data that appears most frequently in the data set)

• Mean

• Median

• Mode

• Range

Which measure of central tendency is greatly affected by extreme scores?

• Mean

• Median

• Mode

• None of the above

A measure of position that divides the data set into four equal parts.

• Mean

• Median

• Mode

• Quartile

How many percent corresponds to Q₃ if you will interpret it?

• 25%

• 50%

• 75%

• 100%

The following are the score obtained by the grade 10 Tactful in their summative test

12, 18, 20, 21, 26, 29, 30, 31, 31, 32, 34, 36

Find the 2nd Quartile

• 31.5

• 29.5

• 28.5

• 20.5

What is the term used for the median of the lower half of the data?

• Maximum

• Median

• Lower Quartile

• Upper Quartile

How many percent corresponds to Q₂ if you will interpret it?

• 25%

• 50%

• 75%

• 100%

In a 40-item test, Ken got a score of 30 which is the third quartile. This means that

• he got the highest score

• he surpassed 75% of his classmates

• his score is higher than 25% of his classmates

• 75% of the class did nor pass the test