Disposable income is the amount left after taxes have been paid. The following table gives the U.S.

Question:

Disposable income is the amount left after taxes have been paid. The following table gives the U.S. per capita disposable income (in thousands of dollars) for selected years from 2016 and projected to 2030. For these data, find the

(a) Mean

(b) Standard deviation.

Per Capita Disposable Income (thousands of dollars) Year Dollars (1000's) Year Dollars (1000's) 44.2 45.5 2016 2024 49.7 2018 2026 51.0 2020 47.0 2028 52.5 2022 48.3 2030 53.8