It is my last part of my work.

1. Probability

3. Glue is a student in School A. He has an average score of 90 percent.

4. Glue is a student in School A. He has an average score of 90 percent. His classmate Paint, Brush, Paper and Stand has score of : 83, 71, 69, 75

5. Glue is a student in School A. He has an average score of 90 percent. His classmate Paint, Brush, Paper and Stand has score of : 83, 71, 69, 75 School B has 5 students with score of : 85, 87, 81, 83 and 86.

6. Glue is a student in School A. He has an average score of 90 percent. His classmate Paint, Brush, Paper and Stand has score of : 83, 71, 69, 75 School B has 5 students with score of : 85, 87, 81, 83 and 86. Find the mean and standard deviation of each school?

7. Glue is a student in School A. He has an average score of 90 percent. His classmate Paint, Brush, Paper and Stand has score of : 83, 71, 69, 75 School B has 5 students with score of : 85, 87, 81, 83 and 86. Find the mean and standard deviation of each school? Which school has a better performance, School A or School B?

8. Glue is a student in School A. He has an average score of 90 percent. His classmate Paint, Brush, Paper and Stand has score of : 83, 71, 69, 75 School B has 5 students with score of : 85, 87, 81, 83 and 86. Find the mean and standard deviation of each school? Which school has a better performance, School A or School B? Solution

9. To find the mean:

10. To find the mean: First, you must add all the score of each school.

11. To find the mean: First, you must add all the score of each school. Second, divide it by the total score.

12. To find the mean: First, you must add all the score of each school. Second, divide it by the total score. School A has score of 90, 83, 71, 69, 75.

13. To find the mean: First, you must add all the score of each school. Second, divide it by the total score. School A has score of 90, 83, 71, 69, 75. - so by adding it all, it is equal to 388.

14. To find the mean: First, you must add all the score of each school. Second, divide it by the total score. School A has score of 90, 83, 71, 69, 75. - so by adding it all, it is equal to 388. - then divide it by 5, is equal to 77.6 .

15. Just the same as School B, it has score of :85, 87, 81, 83, 86.

16. Just the same as School B, it has score of :85, 87, 81, 83, 86. - so adding it all is equal to 422.

17. Just the same as School B, it has score of :85, 87, 81, 83, 86. - so adding it all is equal to 422. - divide it by 5 is equal to 84.4.

18. Standard Deviation

19. In finding the standard deviation:

20. In finding the standard deviation: First, subtract the scores to the mean and squared it like this:

21. In finding the standard deviation: First, subtract the scores to the mean and squared it like this:

22. In finding the standard deviation: Second, average the value and take the square root :

23. In finding the standard deviation: Second, average the value and take the square root : Standard Deviation

24. In finding the standard deviation: Second, average the value and take the square root : In finding the mean and Standard deviation in school B is just the same procedure in school A.

25. In finding the standard deviation: Second, average the value and take the square root : In finding the mean and Standard deviation in school B is just the same procedure in school A. - so, School B has mean of 84.4 and standard deviation of 2.154065923.

26. School A has : Mean = 77.6 Standard Deviation = 7.84 School B has : Mean = 84.4 Standard Deviation = 2.15

27. When it comes to performance, it depends:

28. When it comes to performance, it depends: - because when you ask who’s school has higher grade, School A has 90 percent and School B has only 87 percent.

29. When it comes to performance, it depends: - because when you ask who’s school has higher grade, School A has 90 percent and School B has only 87 percent. - in a matter of fact, when it comes to team work of grades School B would be the winner because of its standard deviation.

30. When it comes to performance, it depends: - because when you ask who’s school has higher grade, School A has 90 percent and School B has only 87 percent. - in a matter of fact, when it comes to team work of grades School B would be the winner because of its standard deviation. Standard Deviation tells how spread out the grades or very close to the same value or (the mean).