To calculate the mean number of calories per serving for the given snack foods, you first need to add up the calories for each food and then divide by the number of food items.
Here are the calories per serving for each snack food:
- Corn chips: 230 calories
- Popcorn (no butter): 25 calories
- Potato chips: 115 calories
- Pretzels: 62 calories
Now, let's add these values together:
\[ 230 + 25 + 115 + 62 = 432 \text{ calories} \]
Next, divide the total calories by the number of food items. There are 4 food items:
\[ \text{Mean} = \frac{432 \text{ calories}}{4} = 108 \text{ calories} \]
Thus, the mean number of calories per serving for these foods is 108 calories.
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