I. FILL IN THE BLANKS. 10 POINTS Directions: Fill the blanks with the appropriate word or phrase to make meaningful statements. Choose the correct answer from the word bank. One bell-shaped curve six zero inferential statistics equal z-values touch the horizontal axis x-axis 34% probability ,proportion, percentage 1.The curve of a probability distribution is formed by _. 2. The area under a normal curve is _. 3. The important values that best describe a normal curve are _. 4. There are_standard deviation units at the baseline of a normal curve. 5. The curve of a normal distribution extends indefinitely at the tails but does not 6. The area under a normal curve may also be expressed in terms of_or__or 、 7. The mean, median and the mode of a normal curve are _. 8. A normal curve is used in_.、 9, About_of a score distribution is between z=0 and z=1 10. The skewness of a normal curve is_because it is symmetrical.