hi, i would like some help in answering this question.

Question 1 Bryan's Construction keeps a log of salaries paid out to their workers. While conducting an internal audit, the daily wages of 50 workers, in thousands of dollars are shown to be: 12 21 13 1729 33 26 47 10 36 31 32 2725 16 36 29 22 124 21 25 45 18 37 42 35 28 20 44 34 43 22 36 34 20 15 26 17 21 25 30 -27 32 26 28 30 38 19 26 A. By using class intervals of 10 - 14, 15 - 19, 20 -24, and so on, construct a frequency distribution. (5 marks) B. Calculate the average salary of the workers. (6 marks) C. Calculate the standard deviation. (7 marks) D. Calculate the probability that a worker chosen at random receives a daily salary of $25,000.00 or greater. (2 marks)