Uri asked six friends how many different foreign countries theyÍd been to. He recorded 0, 1, 1, 2, 5, and 9 countries visited.

What is the mean absolute deviation of the number of countries visited? Round to the nearest tenth, if needed.

A.

0 countries

B.

2.7 countries

C.

2.9 countries

D.

3 countries

Question

Mathematics

Terrance Hansen

26 March, 02:02

Uri asked six friends how many different foreign countries theyÍd been to. He recorded 0, 1, 1, 2, 5, and 9 countries visited.

What is the mean absolute deviation of the number of countries visited? Round to the nearest tenth, if needed.

A.

0 countries

B.

2.7 countries

C.

2.9 countries

D.

3 countries

+1

Answers (1)

Know the Answer?

Haylie Mathews · Answer 1

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.

Uri asked six friends how many different foreign countries theyÍd been to. He recorded 0, 1, 1, 2, 5, and 9 countries visited.What is the mean absolute deviation of the number of countries visited? Round to the nearest tenth, if needed.A.0 countriesB.2.7 countriesC.2.9 countriesD.3 countries