PLEASE EXPLAIN HOW YOU GOT ANSWER. A school administrator tells everyone in the building that they will be having a fire drill randomly sometime during the school day which is from 8 a. m. to 3 p. m. If second period is from 9:00 a. m. to 10:00 a. m., what is the probability of the fire drill happening during second period?

Step-by-step explanation:

Given

Required

Determine the probability that the fire drill happens in the second period

First, we need to convert both time range to hours.

8 am to 3 pm is 7 hours.

So:

9 am to 10 am is 1 hour.

So:

The required probability can then be calculated using:

In this case, it is:

where is the figure

1. 3.4/4

2. 0.8/7

3. 0.5 x 3

4. 0.9 x 6

5. 10.8

6. 2.35

7. 0.567

8. 9.35

9. 0.02

10. 0.06

11. 0.16

12. 0.42

13. 0.63

14. 5.6

15. 8.1

16. 9.9

17. 0.28

18. 0.48

19. 0.27

20. 0.49

21. 0.45

22. 0.72

23. 0.9

24. 0.88

25. 0.75

26. 0.16

27. 0.328

28. 0.495

29. 0.72

30. 1.068