Comparing Data Sets

Front

What is a symmetric distribution?

Back

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

Front

What does it mean for a distribution to be skewed left?

Back

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

Front

What does it mean for a distribution to be 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

How does a low outlier affect the mean and median?

Back

A low outlier decreases the mean but has little effect on the median.

Front

What is the mean of a data set?

Back

The mean is the average of all data points, calculated by summing all values and dividing by the number of values.

Front

What is the median of a data set?

Back

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

Front

What is a bimodal distribution?

Back

A bimodal distribution has two different modes, or peaks, indicating two prevalent values in the data set.

Front

What is the difference between mean and median?

Back

The mean is affected by outliers, while the median is not, making the median a better measure of central tendency for skewed distributions.

Front

What does it mean for a distribution to be uniform?

Back

A uniform distribution has all outcomes equally likely, resulting in a flat shape.

Front

How can you identify a symmetric distribution visually?

Back

A symmetric distribution appears balanced on both sides of the center point, with equal frequencies on either side.