The Sydenham High School Mathematics Department Blog » Statistics

Mr Brewin’s GCSE Stats – Worksheet Answers

Mr Brewin — Wed, 14 Dec 2011 10:19:37 +0000

Here’s the answers for the worksheets I gave you for Christmas!

Enjoy

Mr Brewin’s Y10 Stats GCSE

Mr Brewin — Fri, 11 Feb 2011 10:30:06 +0000

As promised, some links you can explore over the weekend to do with reaction times:

http://www.humanbenchmark.com/tests/reactiontime/index.php
This site gives a simple on screen test with the top 100 results recorded.

http://www.sciencejoywagon.com/explrsci/media/reflex.htm
This site provides a simple test for sight and sound.

http://www.break.com/index/sheepshooting.html
This game gives you times based on recognising movement.

http://reflex.sosocial.net/reactionbutton.php
Start/Stop button test

http://getyourwebsitehere.com/jswb/rttest01.html
Traffic Light test. Top 5 scores are available for comparison.

http://faculty.washington.edu/chudler/java/dottime.html
Hitting dots as they appear.

It would be good if you could explore which sites might be of use. I don’t mind if you make a note of the web address so you can put it into your plan.

Remember, when talking about your hypotheses and how to test them, your plan should have two main themes:

1. What Data Should Be Collected?

You need to think about:

• What is the population from which the data will be collected?

• How reliable is the data?

• What data is to be collected and how will it be recorded?

• Which sampling method will be used and why?

• How large should the sample be?

• What problems might arise and how will they be overcome?

• How might bias arise and how can this be minimised?

• How could the data be collected?

• What data sheets will be required?

If you are collecting data in groups you’ll need to give an explicit account in your plan of how you will do this.

2. What Statistical Techniques Can Be Used?

Think in particular about how you can collect bivariate data so that you can use the more advanced techniques that we have done.

Good luck thinking about it over the weekend!

Mr Brewin’s S1 – The Spirit Level

Mr Brewin — Mon, 24 Jan 2011 10:01:07 +0000

The slides I was talking about are embedded below. They are from a debate between the authors of The Spirit Level (you can buy it here) and their detractors (who have been shown to be wrong, and wanting to dispute the evidence for ideological reasons). The audio of the debate can be found here.
Peter Saunders and Christopher Snowdon Presentation to the RSA. July 2010.
Kate Pickett and Richard Wilkinson Presentation to the RSA. July 2010

Mr Brewin’s Y12 S1 – Correlation

Mr Brewin — Thu, 20 Jan 2011 14:08:56 +0000

The powerpoint on correlation and PMCC can be found here.

The ‘Joy of Stat’s programme I was talking about is on iPlayer here (need to watch it soon as it’ll soon expire) and the ‘More or Less’ podcast can be found on their website too. Well worth listening to.

Mr Brewin’s GCSE Stats Group – Practice Sheets

Mr Brewin — Tue, 16 Nov 2010 15:48:16 +0000

I’ve uploaded three sheets of practice questions to help strengthen any weak areas from the test on chapter 4.

Variand and Standard Deviation

Range and IQR (Finding Quartiles)

Index Numbers

Hope they’re useful. Answers here.

Mr Brewin’s GCSE Stats – Sample Coursework Etc.

Mr Brewin — Tue, 02 Feb 2010 11:37:25 +0000

Here are some of the documents you might want to have a look at to help with your coursework:

Sample Coursework

Coursework Write-up Guide

Mayfield High Data Spreadsheet

Hope that’s helpful!

Mr Brewin’s GCSE Stats

Mr Brewin — Fri, 10 Jul 2009 14:20:02 +0000

Here’s the presentations for you to have a look at over the summer – sorry the site has been down for a few days!

Populations and Samples

Collecting Data

Have a great holiday – and have a think about what you’d like to do for your projects!

Protected: Year 12/13 S1 Students – Markschemes

Mr Brewin — Tue, 14 Apr 2009 08:00:28 +0000

Protected: Year 12/13 S1 Students

Mr Brewin — Wed, 01 Apr 2009 14:03:26 +0000

Mr Brewin’s Year 12 Stats

Mr Brewin — Wed, 25 Feb 2009 15:42:34 +0000

Here’s the slides on Regression that we covered today. Becky and Deola – if you could have a look at them and have a go at Ex 7A before next lesson that would be much appreciated.

Also, here’s the worked solutions to the special homework of exam questions on probability. Have a look through them to check any errors.

Ex 7A done for Friday please.

Ta.