<｜begin▁of▁sentence｜>### Instruction:
As a NetworkX enthusiast, you may have encountered situations where you need to initialize a Graph object, add nodes and edges to it, perform operations, and retrieve certain information. Let's walk through a scenario where you are tasked with creating a network of social connections and then calculating a specific metric related to the network.

{'NetworkX API': 'Python package for the creation, manipulation, and study of complex networks.'}
### Response:
from RunningMean import RunningMean

# Initialize a running mean object
rm = RunningMean()

# Update the running mean with some numbers
rm.update(5)
rm.update(10)
rm.update(15)

# Represent the running mean object as a string
print(repr(rm))
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