Stats Vocabulary

Front

Mean

Back

The average of the numbers. To find it, take the sum of all the numbers in the data set and divide by the amount of numbers.

Front

Median

Back

The middle number in the data set when the data is in increasing order. Order from least to greatest and find the number in the middle.

Front

Mode

Back

The number that appears most often in the data set.

Front

Range

Back

The difference between the highest and lowest values in the data set. Subtract the smallest number from the largest number.

Front

Quartile 1

Back

The median of the lower half of the data.

Front

Quartile 3

Back

The median of the upper half of the data.

Front

Interquartile Range

Back

Q3 - Q1, which is Quartile 3 minus Quartile 1.