A. Fill in the blacks with the appropriate word or phrase to complete the statements. 1. The normal curve is in a figure. 2. The area under the normal curve is 3. The tails of a normal curve extends indefinitely but does not the base line. 4. The three measures of central tendency and are equal in a normal distribution. 5. The symbol used to represent sample mean is 6. The symbol used to represent the raw score is 7. The symbol u represents 8. The area between z = -1 and z = 1 is