BTH - G6- Unit 6 - Collecting data

True or false?

A record of the number of brown-eyed students in a class is categorical data.

• True

• False

Which of these statements are not correct for a good questionnaire?

Select all correct answers.

• 1. Use short questions in simple language.

• 1. Always include name, address and date of birth.

• 1. Use questions that have a ‘Yes’ or ‘No’ answer.

• 1. Ask leading questions such as ‘do you agree...’.

Which of these methods is the best way to record personal information such as the age of a person?

• 1. Use a range of ages to choose from.

• 1. Ask for their age directly.

• 1. Ask if they are above or below a certain age.

Which of these characteristics would you see in a good questionnaire?

• 1. Detailed questions with lots of explanation.

• 1. Lots of questions with phrases for answers.

• 1. A choice of answers that do not overlap.

• 1. Answers which use the words ‘sometimes’ and ‘normally’.

In a survey there is the following question.

How many times did you go to the hairdresser last year?

0 x ......... 3–5 times 6 or more

Which numbers will complete the response section?

......... – ......... times

A survey is to be done to find out who regularly plays football.

Who should be asked?

• 1. Just boys

• 1. Just girls

• 1. Equal numbers of boys and girls

A record of 30 students' hair colour is:

 

•  categorical data

• discrete data

• continuous data

You want to collect data about how often people use social media.

Which is the best place to collect the data?

• 1. At a primary school.

• 1. In a shopping centre.

• 1. At a park.

The table shows sports preferences for a class.

 Basketball   8

Tennis  15

Cricket 5

Select all the answers that reflect this data.

•  This is discrete numerical data.

•  The number of students in the class is 28.

•  This is categorical data.

•  Five students prefer cricket.

A bookstore collects data by analysing sales records.

What type of data is this?

• 1. Continuous data

• 1. Discrete data