7- Typically, a symmetrical shape can be expected from: A) Negatively skewed data B) Positively skewed data C) A distribution of sample means 8- Which of the following is true? A)The variance of the distribution of all possible sample means is equal to the square of the population standard deviation B) The variation of the distribution of all possible sample means is equal to the square of the sample standard deviation C) The variance of the distribution of all possible sample means is equal to the standard deviation of the distribution of means squared