Question

Assume the printer cartridges in average can print 12,000 pages with 800 pages as its standard...

Assume the printer cartridges in average can print 12,000 pages with 800 pages as its standard deviation (µ= 12000, σ = 800), and it is a bell-shaped distribution for the number of pages (X) it can print before running of of ink.(X is a random variable, isn't it?)

Using Emprical Rules to answer:

What is the chance that your cartridger can print more than 13,600 pages (it means that you are very very lucky to have a great cartridger)? That means in Math: Prob(X > 13,600) or in short: P(X > 13,600) = ?

(ex., if the answer is 6.5%, write only 0.065, ignore the % sign).

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