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OpenStudy (anonymous):
Find the probability that a normal variable takes values more than 4/5 standard deviations away from its mean.
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OpenStudy (anonymous):
@douglaswinslowcooper
OpenStudy (anonymous):
value = mean + (4/5) SD z = [(mean + (4/5) SD - mean]/SD = 0.800 find cumulative F(z=0.8), then greater than that is P = 1-F(z=0.8). Try it and so will I.
OpenStudy (anonymous):
i got .2119
OpenStudy (anonymous):
am i supposed to multiply it by 2?
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