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

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S3: Chapter 1 – Combining Variables Dr J Frost (jfrost@tiffin.kingston.sch.uk) Last modified: 28 th November 2014

Starter +123456 1234567 2345678 3456789 45678910 56789 11 6789101112 -123456 10-2-3-4-5 210-2-3-4 3210-2-3 43210-2 543210 6543210 ? ? ? ? ?? (You’re welcome to use the STATS mode on your calculator)

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

Examples ? Quickfire Questions: ? ??

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. ? ? ? ? ?

Test Your Understanding ? ? ? ? ? ? ?

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

Test Your Understanding S3 Edexcel June 2009 Q8 ? ? ?

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

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

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