Answer:
128.5
Step-by-step explanation:
The mean of a set of numbers is the sum divided by the number of terms.
256+1÷2
Add 256 and 1
257÷2
Divide.
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Answers & Comments
Answer:
128.5
Step-by-step explanation:
The mean of a set of numbers is the sum divided by the number of terms.
256+1÷2
Add 256 and 1
257÷2
Divide.
128.5
to get the geo means you need to add the first and last term and divide it by two.