Question
What is the correlation coefficient of the straight line
ax+by+c=0 wherein a>0 and b>0Solution
If the straight line has a positive slope then correlation coefficient is 1, if the slope is negative then it's -1. Here the line has a negative slope (-a/b , a,b are positive). So r=-1
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Match Column I and Column II and choose the correct match from the given choice
Match Column I and Column II and choose the correct match from the given choice
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