a. “Statistical enquiries mean some sort of investigation by any agency whatsoever wherein relevant.

a. “Statistical enquiries mean some sort of investigation by any agency whatsoever wherein relevant information is collected in numbers rather than words”. Briefly explain the stages

involved in any statistical enquiry. (10 marks )

b. Giving relevant examples distinguish between descriptive statistics and inferential statistics.

(4 marks )

c. At a supermarket 70% of customers pay by credit card. Find the probability that in a randomly selected sample of 10 customers;

i.	Exactly five pay by credit card	(2 marks )
ii.	More than seven pay by credit card.	(4 marks )