Mean, Median, Mode and Range

Front

What is the mode?

Back

The number that appears most often in a data set.

Front

What is the median?

Back

The number in the middle when the numbers are arranged in order from least to greatest.

Front

What is the mean?

Back

The average of a set of numbers, calculated by adding them all together and dividing by the number of values.

Front

What is the range?

Back

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

Front

If the mode of a data set is 94, what does that indicate?

Back

More students received a 94 than any other score.

Front

How do you calculate the mean of the numbers 1, 0, 1, 5, 0, 3, 4?

Back

Add all the numbers (1+0+1+5+0+3+4=14) and divide by the number of values (7). Mean = 14/7 = 2.

Front

What is the first step to find the median of a data set?

Back

Arrange the numbers in order from least to greatest.

Front

In the data set 67, 74, 95, 98, 98, 99, 102, what is the range?

Back

Range = Highest value (102) - Lowest value (67) = 35.

Front

What does it mean if a data set has no mode?

Back

No number appears more than once in the data set.

Front

How do you find the median in an even set of numbers, like 2, 4, 6, 8?

Back

Average the two middle numbers (4 and 6). Median = (4+6)/2 = 5.