Central Tendency, Spread, and Box Plots (U5P)

Front

What is the mean in statistics?

Back

The mean is the average of a set of numbers, calculated by adding all the values together and dividing by the number of values.

Front

How do you calculate the mean of the following numbers: 9, 8, 12, 6, 10?

Back

Mean = (9 + 8 + 12 + 6 + 10) / 5 = 9.

Front

What is the mode in a data set?

Back

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

Front

Find the mode of the following numbers: 4, 8, 5, 17, 5, 4, 9, 5, 6, 82.

Back

The mode is 5.

Front

What is an outlier in a data set?

Back

An outlier is a value that is significantly higher or lower than the other values in a data set.

Front

Identify the outlier(s) in the following data set: 92, 88, 106, 196, 76, 72, 67, 10, 115, 73, 111, 59.

Back

There are no outliers.

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the median, quartiles, and potential outliers.

Front

What does the median represent in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest.

Front

How do you find the median of the following numbers: 85, 79, x, 91 if the average is 87?

Back

To find x, set up the equation: (85 + 79 + x + 91) / 4 = 87. Solving gives x = 93.

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.