Question No 10:
Mail order buyers of Brand X, classified by area and age (years)
Area/Age Under 25 25-44 45-64 65+
North 400 350 300 250
South 600 550 500 450
East 200 150 100 50
West 400 350 300 250
Total 1,600 1,400 1,200 1,000
The probability that a randomly-selected Brand X buyer is from the North and under 25
years of age is (to 2 decimal places)
A. 0∙08
B. 0∙25
C. 0∙31
D. 0∙56
Answer: A
No comments:
Post a Comment