12-19 Mean, Median, Mode, Range, Standard Dev, z-score

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 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

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

Back

The range is calculated by subtracting the smallest number in the set from the largest number.

Front

What is standard deviation?

Back

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

Front

What is a z-score?

Back

A z-score indicates how many standard deviations an element is from the mean of the set.

Front

Find the mean of the following set of numbers: 12, 15, 18, 21, 24.

Back

The mean is 18.

Front

Find the median of the following set of numbers: 10, 20, 30, 40, 50.

Back

The median is 30.

Front

Calculate the mode of the following set of numbers: 4, 4, 5, 6, 7.

Back

The mode is 4.

Front

Calculate the range of the following set of numbers: 5, 10, 15, 20, 25.

Back

The range is 20.