A simple random sample of families living in a Chicago suburb was selected. Each family was asked to estimate the number of times each month they went out to eat. The families were told to use a 30-day month and to consider breakfast, lunch, and dinner. Household size and number of times dining out per month are shown in the table below: Number of Times Dining out per Mont
| # of people in household |
under 10 |
10-20 |
20 or more |
| 1-3 |
12 |
14 |
19 |
| 4-6 |
25 |
20 |
8 |
| 7+ |
46 |
13 |
3 |
A. What is the probability that a person chosen at random from the sample will come from a household with 4-6 people?
B. What is the probability that a person chosen at random from the sample who goes out to eat under 10 times per month will come from a household with 4-6 people?
C. Is the number of times per month a family goes out to eat independent of household size? Explain.