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Good evening friend. Have a great day ahead
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Over the years it has been observed that of all the student who take the psat exam 60% make a 1000 or better suppose that this year 600 are going to take the psat exam what is the probability that 385 or more is 4/1000 aur better 350 or fever isko 1000 aur better between 345 and 390 score 1000 or better?
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