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A lecture hall has 210210 seats with folding arm​ tablets, 2929 of which are designed for​...

A lecture hall has 210210 seats with folding arm​ tablets, 2929 of which are designed for​ left-handers. The average size of classes that meet there is 192192​, and we can assume that about 1313​% of students are​ left-handed. What's the probability that a​ right-handed student in one of these classes is forced to use a lefty arm​ tablet?

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