What did Galton use to calculate how strong the relationship was for the line of best fit? a bell shaped curve forensics genetic
2 answers:
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Rate of change = 
So grab 2 Y's first and then subtract
7 - 3 = 4
and do the same for X
4 - 2 = 2
Simplify
4/2 = 2
2 is your rate of change
So grab 2 Y's first and then subtract
7 - 3 = 4
and do the same for X
4 - 2 = 2
Simplify
4/2 = 2
2 is your rate of change
Answer:
21
Step-by-step explanation: