Measures of Center

Front

What is the Mean?

Back

The Mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

What is the Median?

Back

The Median is the middle value in a set of numbers when they are arranged in order from least to greatest.

Front

What is the Mode?

Back

The Mode is the number that occurs most frequently in a data set.

Front

What is the Range?

Back

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

Front

What is the Interquartile Range (IQR)?

Back

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

Front

How do you find the Median of a set of numbers?

Back

To find the Median, first arrange the numbers in order from least to greatest, then identify the middle number.

Front

What is the formula for calculating the Mean Absolute Deviation (MAD)?

Back

MAD = (Sum of |each value - Mean|) / (Number of values).

Front

If a data set is: 5, 7, 8, 9, 10, what is the Median?

Back

The Median is 8.

Front

If a data set is: 2, 3, 3, 6, 7, what is the Mode?

Back

The Mode is 3.

Front

What is the first step in finding the Median?

Back

The first step is to arrange the numbers from Least to Greatest.