2.4-2.5 Review: Distribution Shapes and Outliers

Front

What is the formula to identify the LOWER limit for outliers using IQR?

Back

Q1 - 1.5(IQR)

Front

What shape describes a distribution where data is evenly spread across the range?

Back

Uniform

Front

What does a left-skewed distribution indicate about the data?

Back

The tail on the left side is longer or fatter than the right side.

Front

If Q1 = 53 and Q3 = 61, what is the IQR?

Back

IQR = Q3 - Q1 = 61 - 53 = 8

Front

What is the formula to identify the UPPER limit for outliers using IQR?

Back

Q3 + 1.5(IQR)

Front

What does a right-skewed distribution indicate about the data?

Back

The tail on the right side is longer or fatter than the left side.

Front

If a data point is greater than the UPPER limit, what is it considered?

Back

An outlier.

Front

What is the purpose of using IQR in statistics?

Back

To measure the spread of the middle 50% of the data and identify outliers.

Front

What is a symmetrical distribution?

Back

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

Front

What is the definition of an outlier?

Back

A data point that is significantly different from the other data points in a dataset.