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2.4.4 Mean and variance of the binomial (A-level only)

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Question 38

A high-frequency trading system detects that the probability of a trade execution suffering from 'micro-latency' (a delay greater than 10ms) is 0.35. Trades are analyzed in independent batches of 240.

a.

Using a suitable approximation, estimate the probability that there are more than 80 trades with micro-latency in a single batch.

[4]
b.

A technician monitors 3 such independent batches. Estimate the probability that there are at least 81 trades suffering from micro-latency in each of the 3 batches.

[2]

2.4.4 Mean and variance of the binomial (A-level only) Questions

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  3. /2.4.4 Mean and variance of the binomial (A-level only)