Answer all of the following ACTIVITIES ,and please do follow the page numberings for easy format.

b. to the left of z c. at least z d. to the left of z 5. Which of the following normal curves describe the probability is not greater than -z? a. C. 55 b. d. -201 6. A is a point in the distribution such that a given number of cases is below it. a. Normal curve c. Sample b. Percentile d. Probability 7. The area under the normal curve is also called a. Z-score c. Mean Score b. Percentile d. Probability 8. The total area under the normal curve is a. 1 c. 2 b. 0.5 d. 100 9. Find the area below Z = -1 a. 0.1587 c. 0.8413 b. 0.1000 d. 0.5000 10. Find the probability between Z = 1.25 and Z = 0.35. a. 0.8944 c. 0.5987 b. 0.2576 d. 0.5000 11. The scores in a standardized test of STEM students in their Pre-Calculus Class are normally distributed with a mean of 60 and standard deviation of 8. How may percent of STEM students got below 72? 22. -15 0 2.02 3 0 18 4. -1.65 0 5. -2.0 -1.05 0 B. Draw the normal curve and find the probability of the following: 1. greater than z = 0.62 2. at least z = -1.95 3. to the left of z = -1.04 4. not greater than z = 2.6 5. between z= 2.2 and z= 2.83 5a. 1.5% c. 93.32% b. 50% d. 72.55% 12. The mass of 2000 CCNHS students are normally distributed with a mean of 46kg with standard deviation of 2.5kg. What is the probability that a student is heavier than 50kg? a. 0.0548 c. 0.9452 b. 0.4452 d. 0.5000 13. The scores of HUMSS students in a statistics class were normally distributed with a mean of 55 and a standard deviation of 4. Find the 90th percentile. a. 90.14 c. 60.14 b. 70.14 d. 80.14 14. The average puto sales in Calasiao follows a normal distribution with a mean sales of 105kg and a standard deviation of 6kg. Find the probability where the puto sales is in between 90kg and 115kg. a. 0.4938 c. 0.5000 b. 0.9463 d. 0.4525 15. A TVL HE student took a job in a restaurant where the employees are paid an average rate of 80 Php per hour with a standard deviation of 1 1Php. If the wages are normally distributed, what is the probability that the student will be paid less than 75Php? a. 15.5% c. 60.2% b. 87.0% d. 32.3% 3For numbers 1 and 2, please refer to the figure below. Z Z 1. Which of the following notion is depicted by the figure above? a. No more than Z b. Between Zi and Za C. Between -Zi and Zz d. Between 0 and Zz 2. Which notions below describe the given figure? a. P(Zi>Z> Zz) b. P(Z1>Z