Cambridge A Level Mathematics: Probability & Statistics 1 (9709 Paper 5)

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Course content

92 lessons

5.1 · Representation of data

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5.1 · Measures of central tendency

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5.1 · Measures of variation

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5.3 · Probability

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5.2 · Permutations and combinations

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5.4 · Probability distributions

0/8

5.4 · The binomial and geometric distributions

0/11

The binomial distribution

Preview12m

Calculating binomial probabilities

Preview13m

Binomial probabilities: at most and at least

12m

Expectation and variance of the binomial distribution

12m

The geometric distribution

12m

Geometric probabilities over a range of values

12m

Expectation of the geometric distribution

11m

Choosing a binomial or geometric model

12m

The binomial and geometric distributions: practice

12m

The binomial and geometric distributions: exam practice

15m

The binomial and geometric distributions: summary

5.5 · The normal distribution

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5.4 · The binomial and geometric distributionsLesson 7 of 11

Expectation of the geometric distribution

For X ~ Geo(p), E(X) = 1/p: with a 1 in 6 chance, the first six comes on the sixth throw on average.

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