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S3: Chapter 1 – Combining Variables Dr J Frost Last modified: 28 th November 2014.

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Presentation on theme: "S3: Chapter 1 – Combining Variables Dr J Frost Last modified: 28 th November 2014."— Presentation transcript:

1 S3: Chapter 1 – Combining Variables Dr J Frost Last modified: 28 th November 2014

2 Starter ? ? ? ? ?? (You’re welcome to use the STATS mode on your calculator)

3 Combining Variables Quickfire Questions: ? ? ? ? ? ? ? More Generally: ? ? >> Proof

4 Examples ? Quickfire Questions: ? ??

5 Each piece of paper is folded twice so that its thickness is 4 times as much. The total thickness when 4 separate pieces of paper are taken. ? ? ? ? ?

6 Test Your Understanding ? ? ? ? ? ? ?

7 Beefier Example ? Find distribution for weight of full crate ? ? ? ?

8 Test Your Understanding S3 Edexcel June 2009 Q8 ? ? ?

9 Exercise 1A Q1, 3, 5, 7-10 S3 June 2007 Q7 And also… ? ? ?

10 Proofey-Woofs ? Not examined Note assumption of independence. ? << Back


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