Distribution Shape

Front

What is a skewed right distribution?

Back

A distribution where the tail on the right side is longer or fatter than the left side, indicating that most data points are concentrated on the left.

Front

What is a skewed left distribution?

Back

A distribution where the tail on the left side is longer or fatter than the right side, indicating that most data points are concentrated on the right.

Front

Define symmetrical distribution.

Back

A distribution where the left and right sides are mirror images of each other, meaning the mean, median, and mode are all equal.

Front

What does it mean if a distribution is uniform?

Back

A distribution where all outcomes are equally likely, resulting in a flat shape.

Front

What is bimodal distribution?

Back

A distribution with two different modes or peaks, indicating two prevalent values in the dataset.

Front

How can you identify a skewed right distribution visually?

Back

By observing that the bulk of the data is on the left side with a long tail extending to the right.

Front

How can you identify a skewed left distribution visually?

Back

By observing that the bulk of the data is on the right side with a long tail extending to the left.

Front

What is the relationship between mean, median, and mode in a skewed right distribution?

Back

In a skewed right distribution, the mean is greater than the median, which is greater than the mode.

Front

What is the relationship between mean, median, and mode in a skewed left distribution?

Back

In a skewed left distribution, the mean is less than the median, which is less than the mode.

Front

What is the importance of understanding distribution shapes in statistics?

Back

Understanding distribution shapes helps in analyzing data, making predictions, and choosing appropriate statistical methods.