Let X1, X2,., X be a random sample from a distribution with mean u and variance o2.Consider the random variable, X. Which of the following properties are true? Select all that apply. On average, the sample mean is equal to n times the population mean. On average, the sample mean is equal to the population mean. The variance of the sample mean is equal to n times the population variance. The variance of the sample mean is equal to the population variance divided by n On average, the sample mean is equal to the population mean divided by n. The variance of the sample mean increases as n increases. The variance of the sample mean decreases as n increases. OOO0 000