PSAT Math Multiple-Choice Practice Question 279
Question: 279
The table shows the weight of 100 laptops. Find the mean weight to the nearest hundredth of a pound.
| Weight | Quantity |
| 3 pounds | 35 |
| 4 pounds | 24 |
| 5 pounds | 19 |
| 6 pounds | 11 |
| 7 pounds | 11 |
Correct Answer: C
Explanation:
The correct solution is 4.39 pounds. The sum of the weights is 3 × 35 + 4 × 24 + 5 × 19 + 6 × 11 + 7 × 11 = 105 + 96 + 95 + 66 + 77 = 439. The average weight is 439 divided by 100, or 4.39 pounds. See Lesson: Interpreting Graphics.
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