# Question

a. Verify, algebraically, that formula (3.2) for calculating r is equivalent to the definition formula (3.1).

b. Verify, algebraically, that formula (3.6) is equivalent to formula (3.5).

b. Verify, algebraically, that formula (3.6) is equivalent to formula (3.5).

## Answer to relevant Questions

a. Verify the equation for these data: b. Verify this equation using formulas (3.2) and (3.6). Refer to Figure 3.8 In “Americans Love Their Automobiles” (Applied Example 3.4 On p. 128) to answer the following questions: a. Name the two variables used. b. Does the scatter diagram suggest a relationship between the ...Refer to the 2009 4-wheel-drive, 6-cylinder SUVs chart in Applied Example 3.4 on page 128 and the two variables gas tank capacity, x, and the cost to fill it, y. a. If you were to draw scatter diagrams of these two ...Many organizations offer “special” magazine rates to their members. The American Federation of Teachers is no different, and here are a few of the rates they offer their members. a. Construct a scatter diagram with ...Consider the following 2009 4WD, 6-Cyl SUV data. a. What value do you anticipate for a correlation coefficient of the two variables annual petroleum consumption in barrels, x, and annual tons of CO2 emitted, y? Explain. b. ...Post your question

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