No,the number of coffee sold per week does not fully represent the number of workers per week
Step-by-step explanation:
A sample that represents a population should be one that accurately reflects the population. If you have the data the shows the number of workers per day then you could calculate the number of workers that facilitate the sell of a certain amount of coffee per day. In this case, the sample could represent the amount of coffee sold for the week but not really the workers that were engaged that week.
2/3 is basically 0.6666666667 which is the same as 66% so any percentage bigger than 66% such as 75% (0.75) which is 3/4 (as a fraction) is bigger than 2/3
