Final answer:
The average number of pretzels sold per game is calculated by dividing the total number of pretzels sold in the three games by the number of games, resulting in an average of 280 pretzels per game.
Step-by-step explanation:
To calculate the average number of pretzels sold per game, you should sum the number of pretzels sold at each game and then divide by the number of games. According to the data provided, the number of pretzels sold for the first three games is 300, 250, and 290, respectively. The formula to find the average is:
Average = (Sum of quantities) / (Number of quantities)
So, the average number of pretzels sold per game is:
Average = (300 + 250 + 290) / 3 = 840 / 3 = 280
Therefore, the correct answer from the options provided is option 2) 280 pretzels sold on average per game.