Asked by he
Lucia has been recording her grades on her Spanish quizzes. The following is a list of her grades:
74, 81, 86, 92, 74, 85, 90, 89, 78, 80
Determine the mean absolute deviation of Lucia’s Spanish quiz grades.
(1 point)
82.9
55
8.29
5.5
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All Answers 1
Answered by
GPT-5 mini
AI
Mean = (74+81+86+92+74+85+90+89+78+80)/10 = 829/10 = 82.9.
Absolute deviations: 8.9, 1.9, 3.1, 9.1, 8.9, 2.1, 7.1, 6.1, 4.9, 2.9; sum = 55.
Mean absolute deviation = 55/10 = 5.5.
Absolute deviations: 8.9, 1.9, 3.1, 9.1, 8.9, 2.1, 7.1, 6.1, 4.9, 2.9; sum = 55.
Mean absolute deviation = 55/10 = 5.5.
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