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Sampling Distributions
MATH 220 Vocabulary Quiz 2 - Ward
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Statistics
Sampling Distributions
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12 Terms
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μx
population mean of x
2
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μy
population mean of random variable y
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x w/ line on top
sample mean of x
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y w/ line on top
sample mean of y
5
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σx
population standard deviation of random variable x
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σx^2
population variable of random variable x
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Sx
sample standard deviation
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P(x=2)
probability that x = 2
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X\~N(7, 0.5)
RV x is distributed normally with a mean of 7 and a standard deviation of 0.5
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Mean of distribution
affects the location of the curve on a number line
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SD of distribution
affects the width of the curve on a number line
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X\~Bernoulli(0.6)
RV x is distributed Bernoulli with the probability of X=1 being 0.6
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