Use the regression calculator to compare the teams’ total home runs with their number of wins. a 2-column table with 9 rows. col

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Use the regression calculator to compare the teams’ total home runs with their number of wins. a 2-column table with 9 rows. col

umn 1 is labeled h r with entries 200, 158, 149, 146, 138, 137, 131, 116, 103. column 2 is labeled w with entries 93, 94, 66, 81, 86, 75, 61, 69, 55. what is the average rate of change of the trend line? round to the nearest hundredth.

Mathematics

1 answer:

tangare [24] · Answer 1 · 2023-08-06T05:27:39+03:00

The average rate of change of the trend line is 0.39

<h3>How to determine the average rate of change of the trend line?</h3>

The points are given as:

hr =>200, 158, 149, 146, 138, 137, 131, 116, 103.

w => 93, 94, 66, 81, 86, 75, 61, 69, 55.

Using a graphing calculator, we have the following calculation summary:

Sum of X = 1278
Sum of Y = 680
Mean X = 142
Mean Y = 75.5556
Sum of squares (SSX) = 6044
Sum of products (SP) = 2355

The average rate (m) is then calculated using:

m = SP/SSX

This gives

m = 2355/6044

Evaluate the quotient

m = 0.38964

Approximate

m = 0.39

Hence, the average rate of change of the trend line is 0.39