Statement:
In Russia, mobile Internet is on average less expensive than in Serbia

In the Most expensive mobile internet rating Russia holds position #139 ²⁰²² out of 204 and Serbia is #124 out of 204 ²⁰²².
Position of Russia is better than position of Serbia.
Both countries holds average positions in the "Most expensive mobile internet" rating. So Average price of 1GB (USD) is an average for both Russia and Serbia, compared to most countries of the World.

Referencies:

1. Most expensive mobile internet ²⁰²² by cable.co.uk

   The countries in the rating sorted by 'Average price of 1GB (USD)' in descending order.

   Russia	'Average price of 1GB (USD)' value is	0.48
   Serbia	'Average price of 1GB (USD)' value is	0.76