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Suppose you have a distribution, x , with mean =13 and standard deviation =3 . Define a new random variable Y=4x-5 . Find the mean
Suppose you have a distribution,
x, with mean
=13 and standard deviation
=3. Define a new random variable
Y=4x-5. Find the mean and standard deviation of
Y.\
E[Y]=47;\\\\sigma _(Y)=12\
E[Y]=47;\\\\sigma _(Y)=48\
E[Y]=47;\\\\sigma _(Y)=7\
E[Y]=52;\\\\sigma _(Y)=48\
E[Y]=52;\\\\sigma _(Y)=7\ None of the above
Suppose you have a distribution, X, with mean =13 and standard deviation =3. Define a new random variable Y=4X5. Find the mean and standard deviation of Y. E[Y]=47;Y=12 E[Y]=47;Y=48 E[Y]=47;Y=7 E[Y]=52;Y=48 E[Y]=52;Y=7 None of the above
Suppose you have a distribution,
x, with mean
=13and standard deviation
=3. Define a new random variable
Y=4x-5. Find the mean and standard deviation of
Y.\
E[Y]=47;\\\\sigma _(Y)=12\
E[Y]=47;\\\\sigma _(Y)=48\
E[Y]=47;\\\\sigma _(Y)=7\
E[Y]=52;\\\\sigma _(Y)=48\
E[Y]=52;\\\\sigma _(Y)=7\ None of the above
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Concepts of Database Management
Authors: Philip J. Pratt, Mary Z. Last
8th edition
1285427106, 978-1285427102
