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5 December, 10:13

The number of typographical errors in a document follows a Poisson distribution with a mean of 3 errors per page. Let X represent the number of errors on 2 pages. Find Ïx.

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  1. 5 December, 10:36
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    probability of x is 0.22 correct to two decimal places

    Step-by-step explanation:

    step 1. use the poisson formula given as

    p (x) = (λˣe∧-λ) : x! where λ is the mean and it called lambda,λ = 3, e is mathematical constant and it approximately = 2.7183, x is the chosen value which is equal to 2, Λ is raise to power,! is factorial sign

    p (x=2) = (3² x 2.7183⁻³) : 2! = 0.22
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