Introduction to statistic

Explain the concept underlying Linear Combinations of Random Variables and calculate the mean and standard deviation of such combinations.
Explain the concept of a random sample from a probability distribution.
Recognize that the value of a statistic obtained from a data sample is a realized value of a random variable.
Explain the concept of the sampling distribution.
Determine the sampling distribution of the sample mean when either the population distribution is Normal or the sample size is large.