can you please help me to solve these questions.

Question Four Given below is the frequency distribution of the 12-month rate of return achieved by 30 stocks. 12-month Rate of Return Number of Stocks 0 up to 2 8 2 up to 4 6 4 up to 6 10 6 up to 8 6 What is the approximate mean rate of return? [3 marks] What is the approximate standard deviation? [4 marks] Find the mode value using a graph. [3 marks] Find the median value. [4 marks] Comment on the shape of the distribution of the data. [2 marks] 2