Finding the Average from a Grouped Frequency Table

The video tutorial covers a paper 1H from the summer 2018 series, focusing on solving questions using effective techniques. It begins with an introduction to the paper and the methods that help students achieve maximum marks. The tutorial then addresses Question 1, explaining how to determine the modal class by identifying the highest frequency. It continues with a detailed walkthrough of calculating the mean weight of parcels, including finding midpoints, multiplying by frequency, and dividing by total frequency to get the average. The tutorial emphasizes understanding the allocation of marks and practicing methods for exam success.

What steps are involved in multiplying midpoints by their corresponding frequencies?

How do you determine the correct mean weight from the calculated total?

What are the criteria for earning marks in Part B of Question One?