In this lesson, we will learn how to estimate the mean using grouped frequency tables.

Students will be able to

Q1:

The table shows students’ math test scores.

Work out an estimation for the mean of the scores.

Q2:

The following table represents the time taken by 35 people to travel to work.

Calculate an estimation for the mean number of minutes people take to travel to work. Round your answer to two decimal places.

Q3:

In an extract of a book, the number of words per sentence was counted. Find the missing numbers in the following table.

Use the previous table to calculate an estimate for the mean number of words. Give your answer to two decimal places.

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