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In a certain school,420 of the 600 students pass a standardized mathematics test, for which the...

In a certain school,420 of the 600 students pass a standardized mathematics test, for which the national passing rate is 60 percent. If the students at the school had no special aptitude for the test, how many would you expect to pass, and what is the probability that 420 or more would pass? Can the school claim that its students are significantly well prepared for the test?

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