# Get MEI Statistics 2 (3rd Edition) PDF

By Alan Graham, Anthony Eccles, Bob Francis

ISBN-10: 0340888539

ISBN-13: 9780340888537

This sequence, recognized for accessibility and for a student-friendly process, has a wealth of good points: labored Examples, actions, Investigations, Graded workouts, Key issues summaries and dialogue issues. to make sure examination luck there are many updated examination questions, plus symptoms to point universal pitfalls. MEI supply complete help to high schools via their community with newsletters, education days and an annual convention. AS extra natural arithmetic is the obligatory middle part within the AS extra arithmetic qualification (FP1). it's designed in order that scholars can commence it, along C1 and C2, instantly after larger tier GCSE. the themes coated are complicated numbers, matrices, graphs, inequalities, roots of equations, sequence and facts through induction.

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Extra resources for MEI Statistics 2 (3rd Edition)

Sample text

I) What is the probability that a sample of 80 contains more than two defective screwdrivers? (ii) What is the probability that a sample of 80 contains at least one screwdriver with both a defective handle and a defective blade? [O&C] Historical note Simeon Poisson was born in Pithiviers in France in 1781. Under family pressure he began to study medicine but after some time gave it up for his real interest, mathematics. For the rest of his life Poisson lived and worked as a mathematician in Paris.

59. 41 (iv) Estimate the mean and standard deviation of the time Sheila takes. 2 The question has now been put the other way round. You have to infer the mean, ^u, and standard deviation, cr, from the areas under different parts of the graph. 10% take her 90 minutes or more. 1. 282. 15 Extract from the inverse Normal distribution table If you do not have the table of the inverse Normal function, you can find the same answer by using the table of \$(z) = p in reverse. 17. 8. 8416 This gives a second equation for IL and cr.

The number of outgoing telephone calls made per minute at the same exchange also follows a Poisson distribution, with mean /I. It is found that the proportion of one-minute intervals containing no outgoing calls is 20%. Incoming and outgoing calls occur independently. (ii) Find the value of/I. (iii) Find the probability that a total of four calls, incoming and outgoing, pass through the exchange in a one-minute interval. (iv) Given that exactly four calls pass through the exchange in a one-minute interval, find the probability that two are incoming and two are outgoing.