The sample means for three samples of 20 are shown in the table.

A 3-column table with 3 rows. Column 1 is labeled Sample with entries Sample 1, Sample 2, Sample 3. Column 2 is labeled Sample Mean with entries 12, 8, 16. Column 3 is labeled Actual mean with entries 10.5, 10.5, 10.5.

Compute the variation of each predicted population mean from the sample means in the table.

Sample 1: answer (1.5)
Sample 2: answer (-2.5)
Sample 3: (5.5)

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Which is f(5) for the function –2x2 + 2x - 3?

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.