, , , ,

Use the formula to find the geometric mean.

Multiply by .

Multiply by .

Multiply by .

Multiply by .

Factor out of .

Rewrite as .

Pull terms out from under the radical.

Approximate the result.

The geometric mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

Find the Geometric Mean 13 , 18 , 16 , 21 , 19