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) If the standard deviation of a random variable X is 15 and a random sample of size n=15 is obtained, what is the standard deviation of the sampling distribution of the sample mean?
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Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?
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Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line
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) If the standard deviation of a random variable X is 15 and a random sample of size n=15 is obtaine...
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