MEan, Median, Mode, Range, & Quartile Test

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 number of items.

Front

What is the median?

Back

The median is the middle number in a sorted list of numbers. If there is an even number of items, the median is the average of the two middle numbers.

Front

What is the mode?

Back

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

Front

What is the range?

Back

The range is the difference between the largest and smallest numbers in a data set.

Front

What is Quartile 1 (Q1)?

Back

Quartile 1 (Q1) is the median of the lower half of a data set, which separates the lowest 25% of data from the rest.

Front

What is Quartile 3 (Q3)?

Back

Quartile 3 (Q3) is the median of the upper half of a data set, which separates the highest 25% of data from the rest.

Front

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

Back

To find the mean, add all the numbers together and divide by the total number of items.

Front

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

Back

To find the median, first sort the numbers in order, then find the middle number.

Front

What is the formula for calculating the range?

Back

Range = Largest number - Smallest number.

Front

If a data set is: 2, 3, 5, 7, 7, what is the mode?

Back

The mode is 7, as it appears most frequently.