1. A sandwich artist at a certain sandwich shop is examining the orders from the previous week. Each order was checked for whether the customer ordered white or wheat bread and whether the customer ordered a side of potato chips. The results are shown in the table below.

Question

1. A sandwich artist at a certain sandwich shop is examining the orders from the previous week. Each order was checked for whether the customer ordered white or wheat bread and whether the customer ordered a side of potato chips. The results are shown in the table below.

White Wheat Total
Potato Chips 248 168 416
No Potato Chips 215 195 410
Total 463 363 826
Which joint frequency occurred the most often in the previous week?
A. Customers who ordered wheat bread and a side of potato chips
B. Customers who ordered white bread but did not order a side of potato chips.
C. Customers who ordered wheat bread but did not order a side of potato chips.
D. Customers who ordered white bread and a side of potato chips.
2. The employees of a city's parking enforcement are examining the number of parking tickets issued in the city. The city has paid parking spaces in a parking garage, parking lot, and on the street. The employees also reviewed the number of parking tickets issued on weekdays and weekends. The results from the previous month are shown in the table below.

Parking Garage Parking Lot Street Total
Weekday 289 305 406 1000
Weekend 96 124 277 497
Total 385 429 683 1497
In what location were the most parking tickets issued in the city? Explain.
A. They were issued the most in the parking garage because it has the largest marginal frequency among the columns.
B. They were issued the most on the street because it has the largest marginal frequency among the columns.
C. They were issued the most on the street during a weekday because it has the largest joint frequency.
D. They were issued the most on weekdays because it has the largest marginal frequency in the table.

Answer 1

1. The correct answer is option A. Customers who ordered wheat bread and a side of potato chips occurred the most often in the previous week, with a joint frequency of 168.

2. The correct answer is option A. The most parking tickets were issued in the parking garage because it has the largest marginal frequency among the columns, with a total of 385 tickets issued.