Mean, Median, Mode, Range

Front

What is the mean of a set of numbers?

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

What is the median in a data set?

Back

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

Front

What is the mode of a set of numbers?

Back

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

Front

What is the range of a data set?

Back

The range is the difference between the greatest and smallest values in a set of data.

Front

Is 'How many students are in the class?' a statistical question?

Back

Yes, it is a statistical question because it anticipates variability in the number of students.

Front

Is 'What is the average height of students in grade 7?' a statistical question?

Back

Yes, it is a statistical question because it involves collecting data from a group.

Front

Calculate the mean of the following numbers: 2, 4, 6, 8.

Back

The mean is (2 + 4 + 6 + 8) / 4 = 5.

Front

Find the median of the following numbers: 3, 1, 4, 2.

Back

The median is 2.5 (after arranging: 1, 2, 3, 4, the middle values are 2 and 3).

Front

What is the mode of the following numbers: 5, 1, 5, 3, 2?

Back

The mode is 5, as it appears most frequently.

Front

What is the range of the following data set: 10, 15, 20, 5?

Back

The range is 20 - 5 = 15.