Moving to another question will save this response. Question 1 A student wants to analyze the sales made, for self-evaluation of a new business. To do so the following grouped date was collected and used for this put Sales 5-10 10-15 15-20 20-25 25-30 30-35 35-60 Sales 15 25 35 42 25 10 men Using appropriate coding method to compute the SD of the above date gives about, 4.2234 3.3456 23432 NOA