Chapter 13.3, Problem 41E

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11th Edition

Ronald J. Harshbarger + 1 other

ISBN: 9781305108042

Textbook Problem

** Social Security beneficiaries** With data from the Social Security Trustees Report for selected years from 1950 and projected to 2030, the number of Social Security beneficiaries (in millions) can be modeled by

*t* is the number of years past 1950. Use the model to find the average number of Social Security beneficiaries per year (actual and predicted) between

(a) 1980 and 2000. (b) 2010 and 2030.

**(a)**

To determine

**To calculate:** The average number of Social Security beneficiaries per year between

Explanation

**Given information:**

It is provided that with the data from the social security Trustees Reports for selected years from

**Formula used:**

Average value

The average value of a continuous function

**Calculation:**

The provided function is:

Since, the average number of Social Security beneficiaries per year between

Thus, the interval is

Consider the formula:

Substitute

**(b)**

To determine

**To calculate:** The average number of Social Security beneficiaries per year between

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