How To Work Out The Estimated Mean From A Frequency Distribution Table

Multiply midpoints by frequencies and add the sub-totals.

How to work out the estimated mean from a frequency distribution table. Corbettmaths - A video that shows how to find the estimated mean About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new. Add a new column to the table writing down the midpoint middle value of each group. The whole row not just that in the first column needs to be rearranged.

It is for students from Year 5 who are preparing for SATs and 11. First you will need to add a new column onto the end of the frequency table. Add another column onto the table labelled Frequency Midpoint.

The columns have been labelled 1 2 3 and 4. For each row of the table multiply the entry in the Frequency column with the entry in the Midpoint column. Divide by the total of the frequencies.

Make Sure the Numbers Are in Order. Each number in the Frequency column corresponds to the Number to its left. You can label this column fx as you are going to multiply the first two columns together the first column of the frequency table is usually referred to as x.

This is a KS2 lesson on how to find the mode from a frequency table. It is a little bit different if you have to find the mean when given a frequency table. Enter the answer in the Frequency Midpoint column.

Some of the values are missing. If you type all those ages into a calculator it is easy to make an error. It can be helpful to see these.