Data Distributions

Front

What is a data distribution?

Back

A data distribution shows how values are spread or arranged in a dataset.

Front

What does it mean if a distribution is symmetrical?

Back

A symmetrical distribution has a mirror image on both sides of the center.

Front

What is a skewed right distribution?

Back

A skewed right distribution has a longer tail on the right side, indicating that most values are concentrated on the left.

Front

What is a lower quartile (Q1)?

Back

The lower quartile is the median of the lower half of a dataset, representing the 25th percentile.

Front

How do you find the median of a dataset?

Back

To find the median, arrange the data in order and identify the middle value.

Front

What is the third quartile (Q3)?

Back

The third quartile is the median of the upper half of a dataset, representing the 75th percentile.

Front

What is the mode of a dataset?

Back

The mode is the value that appears most frequently in a dataset.

Front

What is a uniform distribution?

Back

A uniform distribution has all values occurring with equal frequency.

Front

How do you calculate the range of a dataset?

Back

The range is calculated by subtracting the smallest value from the largest value in the dataset.

Front

What is an outlier in a dataset?

Back

An outlier is a value that is significantly higher or lower than the other values in the dataset.