This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
ScanSolve AI Answer
Here's a step-by-step solution to the problem. First, let's establish the complete frequency distribution table. The problem states there are 100 students in total. The frequencies given in the table are: 0 x < 10: 6 10 x < 20: 9 20 x < 30: 12 30 x < 40: (This cell shows '30' in the image, but the student's work for part (a) implies this is 'y' and calculates y=14. There is an inconsistency here. To proceed, we will assume the student's calculation for 'y' is correct