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Answer:
cos 60° = 1/2 because the angles are complements.
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
We have given
,
and SP =30
We have to find the slope for regression on Y from X
The slope on Y from X is given by 
As we have given the value of SP =30 and value of 
So slope for regression will be