Measures of Center

Front

What is the mean of a set of numbers?

Back

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

Front

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

Back

To find the median, arrange the numbers in ascending order and identify the middle number. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode of a set of numbers?

Back

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

Front

What happens to the mean if a new number is added to the set?

Back

The mean will change based on the value of the new number. If the new number is higher than the current mean, the mean will increase; if it is lower, the mean will decrease.

Front

What is the range of a set of numbers?

Back

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

Front

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

Back

Add all the numbers together and divide by the total number of values.

Front

What is the median of the following numbers: 3, 5, 7, 9, 11?

Back

The median is 7.

Front

If the numbers are 2, 4, 4, 6, 8, what is the mode?

Back

The mode is 4.

Front

What is the median of the following numbers: 10, 20, 30, 40, 50, 60?

Back

The median is (30 + 40) / 2 = 35.

Front

How does adding a number equal to the mean affect the mean?

Back

Adding a number equal to the mean does not change the mean.