Frequency polygon
- what is a frequency diagram
- what is a cumulative frequency diagram
- what is a grouped frequency diagram
- what is a relative frequency diagram
Cumulative frequency graph.
Representing data - EdexcelFrequency tables and frequency diagrams
Frequency tables and frequency diagrams
When a lot of dataValues, typically letters or numbers.
needs to be sorted, one of the most efficient ways is to use a frequency table.
It is important to consider the sizes of groups when sorting data into a frequency tableThe total of the tally marks is called the frequency, which is shown in an addition column to the right.
With this extra-column, the table is called a frequency table..
Megan owns a bakery.
Frequency diagrams worksheet
She counts the number of customers she has each day at lunchtime on 30 consecutive days. The results are shown here.
| 13 | 8 | 16 | 12 | 12 | 16 |
| 7 | 18 | 11 | 16 | 15 | 7 |
| 11 | 12 | 13 | 21 | 17 | 19 |
| 11 | 14 | 10 | 19 | 13 | 12 |
| 7 | 16 | 6 | 14 | 12 | 18 |
Using this data in list form could be time consuming and with a large set of data it may lead to mistakes or miscalculations.
A grouped frequency table would help to display and give an overview of the data. The smallest number is 6 and the biggest number is 21, so groups that have a width of 5 are reasonable
- what is a frequency table
- what is a frequency table in math