Acompany has been receiving complaints about the attitude of some sales clerks. over a 10-day period, the total number of complaints was 360. the company wishes to develop a control chart for the number of complaints. what would the upper control limit on the number of complaints per day be for a 3 sigma (99.7%) control chart?

Finally, the arena decides to offer advertising space on the jerseys of the arena’s own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14. what is this as a percentage and a fraction? what is the probability of not being shortlisted? give your answer as a decimal. those shortlisted are entered into a final game of chance. there are six balls in a bag (2 blue balls, 2 green balls and 2 golden balls). to win, a company needs to take out two golden balls. the first ball is not replaced. what is the probability of any company winning advertising space on their volley ball team jerseys?