Question 1135830
Determine the probability that NONE of the students receives an 'A':

{{{0.95^50 = 0.0769}}}
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Subtract this result from 1 to determine the probability that AT LEAST ONE of the students receives an 'A':
{{{1 - 0.0769 = 0.9231}}}
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There is a 92.31% chance that at least one of the students receives an 'A'.