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Chapter 2: Q24. (page 86)

A prediction equation for a set of data is y=0.63x+4.51. For which x value is the predicted y value 6.4?

A)鈥夆赌夆赌夆赌�3B)鈥夆赌夆赌夆赌�4.5C)鈥夆赌夆赌夆赌�6D)鈥夆赌夆赌夆赌�8.54

Short Answer

Expert verified

The correct option is A)鈥�鈥�鈥�3.

Step by step solution

01

Step-1 – Substitute the value of y.

The given equation is y=0.63x+4.51

Substitute y for 6.4into the given equation.

6.4=0.63x+4.51

02

Step-2 – Isolate the variable.

6.4鈭�4.51=0.63x1.89=0.63x

03

Step-3 – Simplify for x.

0.63x=1.89x=1.890.63x=3

Hence, the correct option is A)鈥�鈥�鈥�3.

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