A vendor's final score is the average of their scores on all six aspects. Which vendor has the highest final score?

The correct option is Option 4 (Vendor 3).

To find the vendor with the highest final score (average of all six aspects), we calculate the total sum of scores for each vendor across the six aspects. Since each vendor is evaluated on the same number of aspects, the vendor with the highest sum will also have the highest average score:

Vendor 1: 52 + 80 + 72 + 40 + 55 + 77 = 376
Vendor 2: 40 + 58 + 69 + 45 + 41 + 81 = 334
Vendor 3: 75 + 63 + 62 + 56 + 50 + 90 = 396
Vendor 4: 26 + 46 + 40 + 90 + 70 + 71 = 343
Vendor 5: 60 + 70 + 48 + 75 + 28 + 50 = 331

Vendor 3 has the highest total score of 396 (an average score of 66).