Mean

Front

What is the mean in statistics?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the total count of numbers.

Front

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

Back

Add all the numbers together and then divide by the number of values in the set.

Front

Is this a statistical question: How many emails do you send each day?

Back

Yes, it is a statistical question because it can be answered by collecting data.

Front

Is this a statistical question: How many people in Coach Knight's classes are in the band?

Back

Yes, it is a statistical question because it involves counting a group.

Front

Calculate the mean of the following numbers: 61, 45, 52, 48, 53, 49, 57, 46, 60, 54, 58.

Back

The mean is 53.

Front

The mean of four numbers is 10. Three of the numbers are 9, 11, and 7. What is the fourth number?

Back

The fourth number is 13.

Front

Find the mean of the following numbers: 1.4, 2.8, 2.4, 2.5, 2.8, 3.1, 1.1.

Back

The mean is 2.3.

Front

What does it mean if the mean is higher than the median in a data set?

Back

It indicates that the data set may have outliers or is skewed to the right.

Front

What is the median?

Back

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

Front

What is the mode?

Back

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