Mode, mean & median

Front

What is the definition of the median in a data set?

Back

The median is the middle value of a data set when the numbers are arranged in order from least to greatest.

Front

How do you calculate the mean of a data set?

Back

To calculate the mean, sum all the numbers in the data set and then divide by the total number of values.

Front

What is the mode of a data set?

Back

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

Front

If a data set has the numbers 2, 3, 3, 5, and 7, what is the mode?

Back

The mode is 3, as it appears most frequently.

Front

What is the mean of the following numbers: 4, 8, 6, 5, 3?

Back

The mean is 5.2 (sum = 26, count = 5, mean = 26/5).

Front

In the data set 1, 2, 3, 4, 5, what is the median?

Back

The median is 3, as it is the middle value.

Front

How can you find the mode in the data set: 1, 2, 2, 3, 4, 4, 4, 5?

Back

The mode is 4, as it appears most frequently.

Front

What happens to the mean if you add a new number that is much larger than the current mean?

Back

The mean will increase, as the new number will raise the average.

Front

If a data set has no repeating numbers, what can you say about the mode?

Back

The data set has no mode, as no number appears more than once.

Front

What is the median of the following set of numbers: 7, 9, 5, 3, 8?

Back

First, arrange the numbers in order: 3, 5, 7, 8, 9. The median is 7.