Un asked six friends how many different foreign countries they’d been to. He recorded 0, 1, 1, 2, 5, and 9 countries visited Wha

Question

Un asked six friends how many different foreign countries they’d been to. He recorded 0, 1, 1, 2,
5, and 9 countries visited
What is the mean absolute deviation of countries visited?
Round to the nearest tenth, if needed.
A. 0
B. 2.7
C. 2.9
D. 3

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Delilah 1 week 2021-11-19T18:25:55+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-11-19T18:27:50+00:00

    Answer:

    MAD = Σ|x – mean|/n

    mean = (0 + 1 + 1 + 2 + 5 + 9)/6 = 18/6 = 3

    MAD = (|0 – 3| + |1 – 3| + |1 – 3| + |2 – 3| + |5 – 3| + |9 – 3|)/6 = (3 + 2 + 2 + 1 + 2 + 6)/6 = 16/6 = 2.7 countries.

    Step-by-step explanation:

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