Question: A study of New Zealanders was conducted in order to determine people=s preferences for various brands of soft drink. 190 participants in the study reported that they drank either Pepsi or Coke. Those who preferred Pepsi comprised 39.47% of these 190 participants. Of those who preferred Coke, 52.17% drank regular drinks, while those who preferred Pepsi, 42.67 drank diet drinks.

Construct a 2 x 2 table displaying the above results as proportions. Complete the table, giving all calculated proportions to four decimal places.

If a person who drinks diet soft drinks is randomly selected, what is the probability that he or she prefers coke?

What percentage of regular drinkers preferred Pepsi?

From the results above, what do the observations in this study suggest about the brand preference of Pepsi and Coke drinkers? Briefly justify your answers.