The balances (in thousands of dollars) of a person€™s savings account are shown in Table 25 for various numbers of years since the person opened the account.

Let B be the balance (in thousands of dollars) at t years since the account was opened.
a. Use technology to construct a scatterplot.
b. Describe the four characteristics of the association. Compute and interpret r as part of your analysis.
c. Find the rate of change of the balance from t = 3 to t = 4.
d. Find the rate of change of the balance from t = 1 to t = 3.
e. Find the rate of change of the balance from t = 0 to t = 5. Compare the result to the results you found in parts (c) and (d).

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Table 25 Years versus Balances in Savings Account Number of Years Since Account Balance (thousands of dollars) Was Opened 15 19 23