- Question 4 A Attendance At The Accra Sports Stadium Was Alysed By The General Secretary Prosper Harrison Addo The An 1 (41.92 KiB) Viewed 23 times
QUESTION 4 (a) Attendance at the Accra Sports Stadium was alysed by the General Secretary, Prosper Harrison Addo. The analysis demonstrated that spectators consisted of 70% males. If seven people are randomly selected from the spectators during a football match, What is the probability that 4 of them are males? (3 marks) i 11. Find the probability that at most 5 of them are females (4 marks) (b) The number of meals served in a week at KOA Café is normally distributed with a mean of 6,000 and a typical measure of dispersion of 600. i. What is the probability that in a particular week the number of meals served is not more than 5,000? (2 marks) ii. iii. What is the probability that more than 7,500 meals are served? (2 marks) What is the probability that between 5,500 and 6500 meals are served? (2 marks) There is a 40% chance that the number of meals served in a week is below what number? iv. (2 marks) V. Determine the probability that if a particular amber of meals served is selected, it will be in the top 20% of all meals served? (2 marks) (c) OLX Ghana offers catalogue shopping by telephone: Its current operation has 3 clerks to answer telephone inquiries, thus, if more than 3 calls arrive at a time, some of the callers are put on hold and asked to wait. If an average of 30 calls arrive every hour, what is the probability that in a given 12-minute interval, a customer will not be asked to wait? (8 marks)