Question

which three quantities are needed in order to calculate the value of the y-intercept for the linear regression prediction equation?

Answer 1

The three quantities needed are the mean of X, the mean of Y, and the slope

How to determine the values?

The y-intercept of a linear regression is calculated using:

$a = \bar y - a\bar x$

Where:

• $\bar y$ represents the mean of y
• $\bar x$ represents the mean of x
• a represents the slope

Hence, the three quantities needed are the mean of X, the mean of Y, and the slope

Read more about linear regression at:

https://brainly.com/question/25987747

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