1. Decide whether each of the following statements is true or false. If a statement is false, explain why. Neither of the parameters of a normal distribution can be negative.
2. All bell-shaped distributions are normal distributions.
3. In a normal distribution, if µ has a large numerical value, then s2 will also tend to be large.
4. In a normal distribution, about 95% of the values lie within 22 to +2.