Mathematics, 12.11.2019 07:31 tdyson3p6xvtu
Assume that the random variable x is normally distributed, with mean ? = 50 and standard deviation ? = 7. compute the following probabilities. be sure to draw a normal curve with the area corresponding to the probability shaded.
p(56 < x < 68)
b- find the value of za.
z 0.02
c-assume that the random variable x is normally distributed, with mean ? = 50 and standard deviation ? = 7. find each indicated percentile for x.
the 90th percentile
d-the graph of a normal curve is given. use the graph to identify the values of ? and ? .
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Assume that the random variable x is normally distributed, with mean ? = 50 and standard deviation...
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