Probability- Weight question

Question

You can find the suspects weight by correctly predicting the number of people who will drink coffee.

The hotel manager felt bad for keeping everyone awake so he decided to offer everyone a beverage. He conducted a small survey to see which beverage would be preferred. Use the table to predict how many of the 300 guests will want coffee.

Tea - 10 Coffee - 34 Water- 6

Suspects weight = ____.

How do I solve this? Please show work

Answer 1

Tea+Coffee+Water=Total number of people observed

10 + 34 + 6 = 50

34 people ordered coffee out of 50 people total, so we can say that the experimental probability that the next person will order coffee is 34/50, which is equal to 0.68 or 68% (34 divided by 50 is 0.68, 0.68 x 100 is 68%).

If 68% of people want coffee, then we can predict how many of the 300 guests will want coffee by taking 68% of 300.

68% of 300 --> 0.68x300 = 204

Therefore, we can predict that about 204 of the 300 guests will want coffee.