Question

using the same data, it was found that the regression line or line of best fit is given by the equation y = - 0.41x + 120.9
major league baseball team sample
for 2018 regular season

total errors	wins
76	58
82	91
82	90
88	97
93	100
100	73
120	67

use the equation to predict the average wins for a team with total errors of 110.
75.8
26.6
166
70.0

Explanation:

Step1: Identify the regression - line equation

The regression - line equation is $y=-0.41x + 120.9$, where $x$ is the total errors and $y$ is the number of wins.

Step2: Substitute the value of $x$

We are given $x = 110$. Substitute $x = 110$ into the equation: $y=-0.41\times110 + 120.9$.

Step3: Calculate the value of $y$

First, calculate $-0.41\times110=-45.1$. Then, $y=-45.1 + 120.9$. So, $y = 75.8$.

Answer:

75.8