Measures of Position for Ungrouped Data

Front

What is a Technique that divides a set of data into equal groups?

Back

Measures of Position

Front

If Dreigh scored 35, which is the 70th Percentile, what can be said about his performance?

Back

He scored above 70% of his classmates.

Front

What does it mean if Ziane's score of 50 is the third quartile in a 70-item test?

Back

He surpassed 75% of her classmates.

Front

What is the equivalent of the lower quartile in a distribution?

Back

P25 (25th Percentile)

Front

When a distribution is divided into hundred equal parts, what is each score point called?

Back

Percentile

Front

What is the 50th percentile also known as?

Back

Median

Front

What does the first quartile (Q1) represent in a data set?

Back

The value below which 25% of the data falls.

Front

What is the third quartile (Q3) in a data set?

Back

The value below which 75% of the data falls.

Front

How many deciles are there in a distribution?

Back

Ten (10) deciles.

Front

What is the formula to find the percentile rank of a score?

Back

(Number of scores below the score / Total number of scores) x 100.