Which describes a normal distribution with mean u and variance o2? A. Its mode and median are both greater than . B. Increasing o makes the curve thinner and sharper. C. Increasing u shifts the curve to the right. The standard normal distribution A. has a standard deviation equal to 1. B. is symmetric about the mean = 1 C. Neither A nor B Which of the following statements about sampling distributions is/are FALSE? A. The mean of the sampling distribution of the sample means is equal to the population mean. B. When sampling is done with replacement, the standard deviation of the sampling distribution of the sample means is the population standard deviation divided by the square of the sample size. A. A only B. Both A and B C. B only Which of the following statements about the Central Limit Theorem is/are TRUE? A. When a random variable X has a normal distribution, the distribution of the sample means will also be normal for any sample size n. B. From a given population that is not normally distributed, the distribution of the sample means approaches a normal distribution as the sample size n decreases. A. Both A and B B. A only C. Neither A nor B