Data Distribution

Front

What is the range in a data set?

Back

The range is the difference between the maximum and minimum values.

Front

How do you calculate the mean of a set of numbers?

Back

Add all the numbers together and divide by the total count of numbers.

Front

What does a symmetrical graph look like?

Back

A symmetrical graph has a balanced shape on both sides of a central point.

Front

Calculate the mean of these test scores: 67, 74, 95, 98, 98, 99, 102.

Back

90.4

Front

What is the median in a data set?

Back

The median is the middle value when the numbers are arranged in order.

Front

What does it mean if a distribution is skewed to the left?

Back

It means that the left tail of the distribution is longer or fatter than the right tail.

Front

What is the interquartile range (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set.

Front

What is standard deviation?

Back

Standard deviation measures the amount of variation or dispersion in a set of values.

Front

What is a uniform distribution?

Back

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

Front

How do you identify outliers in a data set?

Back

Outliers can be identified using the IQR method or by looking for values that are significantly higher or lower than the rest.