y-intercept?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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In a statistics class, a teacher had the students complete an activity in which they grabbed as many bite-sized pretzels as they could with their dominant hand, without crushing them. The teacher then measured their handspan in centimeters. The scatterplot displays the data the teacher collected along with the least-squares regression line. One student with a handspan of 23 cm grabbed 38 pretzels. This point is circled on the graph.

 

What effect will the circled point have on the y-intercept?

The y-intercept will not change with the addition of this point.
The y-intercept will decrease because the point pulls the least-squares regression line toward it.
The y-intercept will increase because the point pulls the least-squares regression line toward it.
The y-intercept will increase because this point represents an extremely high number of pretzels grabbed with the dominant hand.
Number of Pretzels
40
36
32
28
24
20
16
12
Number of Pretzels Grabbed
17 18 19 20 21 22 23 24 25 26
Handspan (Centimeters)
Transcribed Image Text:Number of Pretzels 40 36 32 28 24 20 16 12 Number of Pretzels Grabbed 17 18 19 20 21 22 23 24 25 26 Handspan (Centimeters)
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