Understanding Quartiles

Front

What is the first step in finding quartiles?

Back

Arrange the data in ascending order.

Front

Which of the following best describes quartiles?

Back

They divide data into four equal parts.

Front

If a dataset has 20 values, what is the position of the median (Q2)?

Back

10.5th value.

Front

The third quartile (Q3) represents:

Back

The highest 25% of the dataset.

Front

A researcher wants to analyze students' test scores using quartiles. What does Q2 represent?

Back

The median score.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a dataset into four equal parts.

Front

How many quartiles are there in a dataset?

Back

There are three quartiles: Q1, Q2 (median), and Q3.

Front

What does Q1 represent in a dataset?

Back

Q1 represents the first quartile, which is the median of the lower half of the dataset.

Front

What does Q3 represent in a dataset?

Back

Q3 represents the third quartile, which is the median of the upper half of the dataset.

Front

How do you calculate the position of Q1 in a dataset?

Back

Position of Q1 = (n + 1) / 4, where n is the number of data points.