Shape of Data Distribution

Front

What does it mean if a data distribution is skewed right?

Back

A skewed right distribution has a longer tail on the right side, indicating that there are a few high values pulling the mean to the right.

Front

What does it mean if a data distribution is skewed left?

Back

A skewed left distribution has a longer tail on the left side, indicating that there are a few low values pulling the mean to the left.

Front

What is a symmetrical distribution?

Back

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

Front

What is a uniform distribution?

Back

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

Front

How can you identify a skewed right distribution in a graph?

Back

In a skewed right distribution, the bulk of the data points are on the left side, with a tail extending to the right.

Front

How can you identify a skewed left distribution in a graph?

Back

In a skewed left distribution, the bulk of the data points are on the right side, with a tail extending to the left.

Front

What is the mean in a skewed distribution?

Back

In a skewed distribution, the mean is pulled in the direction of the skew; it is usually greater than the median in a right-skewed distribution and less than the median in a left-skewed distribution.

Front

What is the median in a skewed distribution?

Back

The median is the middle value of a data set and is less affected by extreme values than the mean, making it a better measure of central tendency in skewed distributions.

Front

What is the mode in a distribution?

Back

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

Front

What does it mean for a distribution to be bimodal?

Back

A bimodal distribution has two different modes, or peaks, indicating that there are two values that occur most frequently.