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Help! In a certain distribution, the mean is 100 with a standard deviation of 5. At least what fraction of the numbers are between the following pair of numbers ? 80 and 120.
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The nth term of a sequence in 2n-1 the nth term of a different sequence is 3n+1 work out 3 numbers that are in bothe sequences and are between 20 and 40
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Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?
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Help!
In a certain distribution, the mean is 100 with a standard deviation of 5. At least what frac...
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