Determine the geometric mean of 1, 3 , 5, 7, 9. Round your answer to the hundredth place.
a.
2.94
c.
4.94
b.
1.94
d.
3.94

Question

Determine the geometric mean of 1, 3 , 5, 7, 9. Round your answer to the hundredth place.
a.
2.94
c.
4.94
b.
1.94
d.
3.94

anonymous · Answer

alright

hartnn · Answer

for geometric mean, we need to take n'th root of the product of all terms
n being number of terms
$here, \Large \sqrt[5]{1\times 3 \times 5\times 7\times 9}$

anonymous · Answer

t im confused, i dont add then?

hartnn · Answer

nopes, for arithmetic mean, you add
for geometric mean,  you multiply :)

hartnn · Answer

you tried to help, thats already a good thing :)

anonymous · Answer

hahah okay then :) thanks

anonymous · Answer

i got 945 when i multipled them

hartnn · Answer

take the 5th root now :)

anonymous · Answer

how do i do that? o.o

hartnn · Answer

use calculator or google
you should get 3.936 ...rounded to 3.94 :)

anonymous · Answer

how do i put that on my caculator though? haha thanks !

hartnn · Answer

welcome ^_^