Frequency Table

By: Lauren Cheung, Muna Tuet, Jenny Chu

Table of Contents1. What is a frequency table?

2. How to construct a frequency table?

3. How to use the chart/graph?

4. What do they look like?

5. How to analyze?

6. Compare/Contrast

7. Who uses them?

8. Importance

9. Examples

10. Real life applications

11. Advantages & Disadvantages

12. Conclusion

13 & 14. Bibliography

What is a frequency table?

- Table that lists items and uses tally marks to record and show the number of times they occur.

How to construct a frequency table

In order to construct a frequency table, please follow the steps:

Make a frequency table- step 1

Construct a table with three columns. The first column shows what is being arranged in ascending order (Start from the smallest number among all).

Make a frequency table- step 2

Go through the list of marks. Organize the marks and put into different columns according to the numbers.

Make a frequency table - step 3

Construct the number of tally marks for each mark and write in the column. The finished frequency table is then constructed.

How to use the chart/graph?

We use this graph when there is a situation like these:1. Population2. Points 3. Decisions from a group of people

What do they look like?

- Looks like a graph with columns that shows how many times an event has occurred. It shows all the different frequencies in an ordered quantified list. The table is normally used to represent summaries of a distribution of values in a sample.

How to analyze?

1. Draw the outline of the table2. Find out what is being arranged in ascending order in the first column.3. Collect the data by putting tallies in the second column.4. We count how many tallies are in per row and write the frequency in the third column.

Compare / contrast

Name of chart\Similarities & differences

Differences Similarities

Frequency Table-A table or chart that shows how often something occurs.-Often presented by a bar chart.

- They are all used to record data and group them into an organize way for people to analyze it.

Bar chart

● It is a type of chart, not table● A way to organize data from tables using

bars and two axes. - Used to compare and contrast values.

Pie chart

● It is a type of chart, not table● Way to organize data from tables● Typically used to display parts of a whole,

where the whole equals 100%.

Who uses them?

Student uses them to analyze the data. Through these processes, they found out the result and learnt things about the data after using the frequency table. Besides, teachers and business men use them for commercial activities.

Importance

- It is well defined as “The process of determining the number of times a score occurs, that is the frequency of its occurrence.” This way of distributing scores is significant to gauge the test you have conducted.- Frequency distributions are particularly useful in summarizing large data sets and assigning probabilities.

Example 1

The number of grade 2 students who chose Taco or Burger as their favourite food.

Example 2

This is the list of marks obtained for the students in the examination. Score (X) Frequency (f)

Below 75 4

76 - 80 14

81 - 85 2

86 - 90 8

91 - 95 5

96 - 100 1

Example 3

The number of cars in a car park

Real life application

In real life statistics, we come across numerical data in the newspaper, magazines, internet, televisions or any other kinds of things regarding different aspects, for example:

- How many people came to an amusement park in one day- Increase or decrease in population of a specific place- Profit made by a company in different years, weather report

Advantages & Disadvantages

Advantages:Frequency tables are simple to understand and read since they mostly have 3 columns showing the value, tally and frequency.Disadvantages:There are a few methods can used in formulating class intervals: “from 5-10” or “Over 55” & “less than 30”.

Conclusion

Overall, we think that frequency table is a pretty good method of representing numbers and data, but there are both advantages and disadvantages, so we wouldn’t just use frequency table because it is not suitable for every kind of datas.

Bibliography

http://wps.prenhall.com/hss_rosnow_beginning_5/20/5238/1341112.cw/index.htmlhttp://www.mathsteacher.com.au/year8/ch17_stat/03_freq/freq.htmhttp://www.northstarmath.com/sitemap/FrequencyTable.htmlhttp://math.tutorvista.com/statistics/frequency-table.htmlhttp://www.math-only-math.com/real-life-statistics.htmlhttp://www.ehow.com/info_12000027_advantages-disadvantages-frequency-table.html

Bibliography

http://encyclopedia2.thefreedictionary.com/Frequency+Distribution

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