Please answer the following.

For number 18 - 25. The given table below gives the distribution of ages of patients admitted in XYZ for the month of January. 18. How many patients admitted in hospital whose age ranges from 30 and above? a. 9 b. 11 c. 14 d. 20 19. Suppose there were 4 who are 39 years old, how many whose ages are below 39? a. 13 b. 11 C. 9 d. 6\f20. What is the class interval of the given data? a. 2 b. 3 C. 4 d. 5 21. What is the class size of the frequency distribution? a. 4 b. 5 C. 20 d. 40 22. Compute Efx. 23. Compute the mean. 24. Compute the median. 25. Compute the mode