A questionnaire is a set of written questions designed to collect information from a respondent.

Biased questioning

Maths

Checking understanding of statistical problems

The Statistical Enquiry Cycle

Types of data

Sampling methods

Stratified sampling

Capture/recapture sampling method

Sampling limitations

Data collection

Advanced problem solving with sampling

In this unit, pupils are given the opportunity to assess how valid a sample may be and what the averages might tell us. In the future unit, pupils extend their knowledge of averages to stem and leaf diagrams as well as comparing two data sets.

In the prior unit, pupils considered the mean, median and mode and evaluated their usefulness in a variety of contexts. In this unit, pupils are given the opportunity to consider where the data came from and how it was collected and can therefore start to evaluate how good a representation the sample is of the whole population.

In this unit pupils will learn how to sample, and explore accuracy and limitations with various sampling strategies and data collection techniques.

Sampling

A {{}} is a set of written questions designed to collect information from a respondent. 

Intelligent people read books. Do you read books?

Do you not agree that you are a person who doesn't not exercise?

Football is boring and awful. Do you like football?

Izzy writes the question: "How many pets do you have?". What should Izzy consider when making response boxes for this question?

The responses are biased towards positive answers.

An Internet service provider asks: In your opinion, how would you rate the speed  of your broadband?: [Amazing, Excellent, Great, Good, Bad, Poor]. What is wrong with their question?

Select all the questions that are considered to be asking for personal information.

Some customers may not need any help and so answer 'no'.

The question is asking for personal information.

Some customers may say 'no' as they haven't met all the staff.

The question is leading people to answer 'yes'.

A supermarket manager wants to find out how satisfied customers are with staff. He asks customers: "Do you feel helped by every member of staff when you go to this shop?". Criticise their question.

There are 5 stages in the Statistical Enquiry {{}}.

Laura is a conducting a survey about food. One of her questions is "It is important to eat healthily and fruit is healthy. Do you like to eat fruit?" What is wrong with Laura's question?

Aisha carries out a survey to find out how much time people spend gaming. How could Aisha's question be improved?

There is no option for someone who didn't read any books.

Lucas wants to find out how many books pupils in year 10 read. What is wrong with his question?

The Oak PE teacher wants to find out how much exercise his pupils do. What is wrong with their question?

under 12; 13 - 18; 19 - 30;  31 - 50; 51 - 75; 76+

under 12; 12 - 18; 19 - 30;  31 - 50; 51 - 75; 75+

under 12; 13 - 18; 19 - 30;  30 - 50; 50 - 75; 75+

under 12; 12 - 18; 19 - 30;  31 - 50; 51 - 75; 76+

under 12; 12 - 18; 19 - 30;  30 - 50; 50 - 75; 75+

Sam designs a questionnaire to find out how much TV people watch. The first question is 'What is your age?' Select the most suitable response boxes.

Biased questioning

Lesson outcome