Mean Median Mode and 5 Number Summary

Front

What is the median?

Back

The median is the middle value in a data set when the numbers are arranged in order.

Front

How do you find the median in an even data set?

Back

Order the data, add the two middle values, and divide by 2.

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 count of numbers.

Front

What is the mode?

Back

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

Front

What is a five-number summary?

Back

A five-number summary includes the minimum, first quartile (Q1), median, third quartile (Q3), and maximum of a data set.

Front

Find the mean of these numbers: 2, 57, 38, 42, 6

Back

Mean = (2 + 57 + 38 + 42 + 6) / 5 = 29.

Front

Find the median of these numbers: 4, 2, 7, 4, 3

Back

Median = 4 (when arranged: 2, 3, 4, 4, 7).

Front

If the mode of a data set is 94, what does it mean?

Back

More students received a 94 than any other score.

Front

What is the first quartile (Q1)?

Back

The first quartile (Q1) is the median of the lower half of a data set.

Front

What is the third quartile (Q3)?

Back

The third quartile (Q3) is the median of the upper half of a data set.