1. Properties of the normal curve
The normal curve is a very important concept in statistics. You can use your knowledge of the normal curve to make descriptions of empirical data distributions, and it is essential to your ability to make inferences about a larger population based on a random sample collected from that population.
Which of the following are true about the normal curve? Check all that apply.

The normal curve is skewed to the left.
The normal curve is skewed to the right.
The normal curve is bell-shaped.
The normal curve has a mean that is identical to its median and mode.