1. Properties of Normal Distribution: (6p)

Short Answer: Write the word or phrase that best completes each statement or answers the question.

1. What is the total area under the normal curve?
2. The normal distribution is defined by two parameters. What are they?
3. What are the mean and standard deviation of the standard normal distribution?

True/false Questions: Decide whether the following statements are true or false.

4. The mean and median of a normal distribution are equal.
5. A z-score represents the number of standard deviations above or below the mean.
6. The mean of the sampling distribution of the means is equal to the mean of the population from which the values were sampled.