Standard deviation of the random variable, Basic Statistics

Standard deviation of the random variable

Suppose the random variable X has mean 45 and standard deviation of 15 and the random variable Y has mean 15 and standard deviation 3. What would be the mean and standard deviation of the random variable X + Y?

Mean 30, standard deviation 9

Mean 30, standard deviation 18

Mean 60, standard deviation 9

Mean 60, standard deviation 15.3

Mean 60, standard deviation 18

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Basic Statistics: Standard deviation of the random variable

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Basic Statistics: Standard deviation of the random variable

Reference No:- TGS0732380

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Recent Questions Asked Basic Statistics

Q : Determine whether the force and couple system shown

Q : Confidence level does this interval represent

Q : What is the longest possible value for the wavelength

Q : Find equations relating heat flow through bottom of pan

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Basic Statistics: Standard deviation of the random variable

Reference No:- TGS0732380

Recent Questions Asked Basic Statistics

Q : Determine whether the force and couple system shown

Q : Confidence level does this interval represent

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