Statement:
In China, mobile Internet is on average less expensive than in South Sudan

In the Most expensive mobile internet rating China holds position #144 ²⁰²² out of 204 and South Sudan is #67 out of 204 ²⁰²².
Position of China is better than position of South Sudan.
Both countries holds average positions in the "Most expensive mobile internet" rating. So Average price of 1GB (USD) is an average for both China and South Sudan, 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.

   China	'Average price of 1GB (USD)' value is	0.41
   South Sudan	'Average price of 1GB (USD)' value is	2.51