Center, Spread, and Shape of Data

Front

What is the shape of a distribution that is skewed left?

Back

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

Front

What does it mean if a distribution is skewed right?

Back

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

Front

What is a symmetrical distribution?

Back

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

Front

When should we use the mean to describe the center of a data set?

Back

When the distribution is symmetrical and has no outliers.

Front

When is it more appropriate to use the median instead of the mean?

Back

When the distribution is skewed or has outliers.

Front

What is the mean?

Back

The average of a set of numbers, calculated by adding them all together and dividing by the count.

Front

What is the median?

Back

The middle value in a data set when the numbers are arranged in order.

Front

What is standard deviation?

Back

A measure of how spread out the numbers in a data set are.

Front

What does it mean if a distribution is uniform?

Back

All outcomes are equally likely, resulting in a flat distribution.

Front

How can you identify a skewed left distribution?

Back

By observing that the majority of data points are on the right side with a tail extending to the left.