A cell phone company wants to determine if the use of text messaging is independent of age.The following data has been collected from a random sample of customers. 
Based on the data above what is the expected value for the "under 21 and regularly use text messaging" cell?
Definitions:
Country
A distinct territorial body or political entity recognized as an independent nation.
Tax-transfer Programs
Government initiatives that collect revenue through taxes to fund transfers of money to individuals or groups, often aimed at reducing poverty and inequality.
Agriculture Subsidies
Financial assistance provided by the government to farmers and agribusinesses to supplement their income and manage the supply of agricultural commodities.
Social Security
Social Security is a government program that provides financial benefits to retirees, disabled individuals, and their families.
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