Consider the following linear transformation of a random variable y = where x is the mean of x and x is the standard deviation. Then the expected value and the standard deviation of Y are given as
A) 0 and 1
B) 1 and 1
C) Cannot be computed because Y is not a linear function of X
D) and x
Question 2
The sample average is a random variable and
A) is a single number and as a result cannot have a distribution.
B) has a probability distribution called its sampling distribution.
C) has a probability distribution called the standard normal distribution.
D) has a probability distribution that is the same as for the Y1,..., Yn i.i.d. variables.
Schematic representations of (a) random, (b) alternating, (c) block, and (d) graft copolymers.
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