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A data set has a normal distribution with a mean of 69 and a standard deviation of 7. About what percent of the data are between 55 and 83?
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Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial
Answers: 1
A data set has a normal distribution with a mean of 69 and a standard deviation of 7. About what per...
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