Quantiles Grouped Data

Branch of statistics dealing with large amount of data, which includes the timely results for

standardized tests in schools, etc.

• Quantiles

• Quartiles

• Deciles

• Percentiles

The median score is also the _____________.

• 75th percentile

• 5th decile

• 3rd decile

• 1st quartile

When a distribution is divided into hundred equal parts, each score point that describes the distribution is called a ___________.

• percentile

• quartile

• decile

• median

The lower quartile is equal to ______________.

• 50th percentile

• 25th percentile

• 2nd decile

• 3rd quartile

Rochelle got a score of 55 which is equivalent to 70th percentile in a mathematics test. Which of the following is NOT true?

• She scored above 70% of her classmates.

• Thirty percent of the class got scores of 55 and above.

• If the passing mark is the first quartile, she passed the test.

• Her score is below the 5th decile.