The standard deviation of a sample was reported to be 7.The report indicated that 
= 980.What has been the sample size?
Definitions:
Revenue
The combined income stemming from a firm's core operations through selling products or offering services.
Social Insurance Taxes
Taxes collected from employees and employers to fund government social insurance programs, such as Social Security and Medicare.
Social Security
A government program that provides financial assistance to people who are retired, disabled, or survivors of deceased workers, funded through payroll taxes.
Medicare
A federal health insurance program in the United States for people who are 65 or older, certain younger people with disabilities, and people with End-Stage Renal Disease.
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