Uri 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.

0
2.7
2.9
3

Question

Uri 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.

0
 2.7
 2.9
 3

finny · Answer

it can't be 0 and it can't be 3

soccer20 · Answer

ok

finny · Answer

what do you think the answer is?

Narad · Answer

The mean is

$$\mu=(0+1+1+2+5+9)/6=18/6=3$$

The mean absolute deviation is

=( |0-3|+|1-3|+|1-3|+|2-3|+|5-3|+|9-3|)/6

=(3+2+2+1+2+6)/6

=16/6

=2.7