1. statistics Survey Collect information called data : Questionaire Organise data : frequency tables Display data : Pictographs,bar charts, pie charts Interpret : what have you found out ?

2. questionaire To find out the most popular : Flavour of crisps day of birth hobby mode of transport to school Flower football team

3. draw a frequency table and record each time a pupil chooses a flavour with a tally mark Count your tally marks in groups of 5 1111 111Represent 5 + 3 = 8 Organise your data in a frequency table Then draw a bar chart or a pie chart This type of data is discrete data : it is collected only once and is numerical The charts give information at a glance

4. To find out the most popular flavour of crisps in your school This fraction of the population is called a sample the sample could be your class. The sample size is the number of pupils that you ask. You cannot ask everyone so you ask a fraction of the school population Cheese and onion, plain, salt and vinegar, prawn cocktail, beef and tomato sauce Limit their choice to no more than 6 choices their responses is your data Choose is your favourite flavour of crisp from the following list? Question

5. Interpret the data What did you want to find out ? What is the most popular flavour of crisps? From the bar chart the most popular flavour of crisps is the flavour with the highest bar This isCheese and onion Cheese and onion is the most popular flavour of crisps with a frequency of 9 So the answer to our survey is-------