Data Distributions

Front

What is a data distribution?

Back

A data distribution shows how values in a dataset are spread out or arranged. It helps to understand the frequency of each value.

Front

What is the lower quartile (Q1)?

Back

The lower quartile (Q1) is the median of the lower half of a dataset. It represents the value below which 25% of the data falls.

Front

How do you find the median of a dataset?

Back

To find the median, arrange the data in ascending order and locate the middle value. If there is an even number of values, average the two middle values.

Front

What is Mean Absolute Deviation (MAD)?

Back

Mean Absolute Deviation (MAD) measures the average distance between each data point and the mean of the dataset.

Front

What is the first step in calculating the Mean Absolute Deviation?

Back

The first step is to find the mean of the dataset.

Front

What is the second step when calculating the Mean Absolute Deviation?

Back

The second step is to find the distance each value is from the mean.

Front

What is the third step in calculating the Mean Absolute Deviation?

Back

The third step is to find the mean of the distances calculated in the previous step.

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 does it mean if a dataset is skewed?

Back

A dataset is skewed if it is not symmetrical, meaning one tail is longer or fatter than the other.

Front

What is a box plot?

Back

A box plot is a graphical representation of a dataset that shows the median, quartiles, and potential outliers.