Answer: 89
Step-by-step explanation:
Since the tests scores are 89, 81, 85, 82, 89, and 89. The measure of central tendency are:
Mean = (89 + 81 + 85 + 82 + 89 + 89) / 5
= 515/6
= 85.83
Median = 89, 81, 85, 82, 89, and 89. We'll rearrange the numbers which will be:
81, 82, 85, 89, 89 and 89
Median = 85+89/2
= 174/2
= 87
Mode = 89 which appears most.
Since the math teacher allows me to choose the most favorable measure of central tendency, I'll choose the mode since it gives a higher score.
