data questions

b) A telecommunication company conducts a research on their new data plan for students. A sample of students from College AAA were asked how much they spent monthly on a cell phone plan. The data is shown as follow. Mom\"? spending on cell phone plan (RM) Number at students ii iii ill} vi) Determine the sample size and element used lor the above study. (2 marks) Find the mean and standard deviation of the cuntth cell phone plan spent by students. (5 marks) Draw an ogive for the above data. (4 marks) Estimate the middle value using the cgive in (iii) and explain the value obtained. (3 marks) Majority of the students spent yon their monthly cell phone plan. Estimate the value of yby using most suitable measurements. Hence. name the value at y. (4 marks) The mean and variance of the monthly cell phone plan spent by students from College 222 were RMBD and RM1 no. respectively. Determine which college is more consistent in its monthly cell phone plan using suitable statistical measurement