Front

What is the definition of variability in data?

Back

Variability refers to how spread out or how much the data points differ from each other in a dataset.

Front

What does it mean if a dataset has no variability?

Back

It means that all the data points are the same or very similar, showing no differences.

Front

What is the median in a dataset?

Back

The median is the middle value when the data points are arranged in order.

Front

How do you find the median of a set of numbers?

Back

Arrange the numbers in order and identify the middle number. If there is an even number of values, average the two middle numbers.

Front

What is the difference between mean and median?

Back

The mean is the average of all data points, while the median is the middle value.

Front

What is a measure of center in statistics?

Back

A measure of center is a value that represents the center or typical value of a dataset, such as the mean or median.

Front

What is the significance of the median in a dataset?

Back

The median provides a better measure of center when the dataset has outliers or is skewed.

Front

If a class has scores of 68, 79, 85, and 98, what is the median score?

Back

The median score is 85.

Front

What is a quartile in statistics?

Back

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

Front

What is the lower quartile?

Back

The lower quartile (Q1) is the median of the lower half of the dataset.