The Shapes of Distributions

Front

What is a distribution in statistics?

Back

A distribution in statistics refers to the way in which data points are spread or arranged across different values.

Front

What does it mean if a distribution is skewed right?

Back

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

Front

What does it mean if a distribution is skewed left?

Back

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

Front

Define a symmetrical distribution.

Back

A symmetrical distribution is one where the left and right sides of the distribution are mirror images of each other.

Front

What is a uniform distribution?

Back

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

Front

How can you identify a right-skewed distribution visually?

Back

A right-skewed distribution typically has a peak on the left and a tail extending to the right.

Front

How can you identify a left-skewed distribution visually?

Back

A left-skewed distribution typically has a peak on the right and a tail extending to the left.

Front

What is the importance of understanding the shape of a distribution?

Back

Understanding the shape of a distribution helps in analyzing data, making predictions, and choosing appropriate statistical methods.

Front

What is the mode in a distribution?

Back

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

Front

What is the median in a distribution?

Back

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