In a county, Algebra students' ages follow a skewed distribution with a mean of 16 years old and a standard
deviation of 3 years. 200 students are randomly selected.
The following statements about the sampling distribution of
the sample mean age can be made.
I. The mean of the sampling distribution is
approximately 9 years.
II. The shape of the sampling distribution is
approximately normal.
III. The standard deviation of the sampling distribution
is equal to 0.21 years.
Which of the statements are true