Given the equation of a regression line is y = -1.04x + 50.3, determine whether

Question

Given the equation of a regression line is y = -1.04x + 50.3, determine whether there is a positive linear correlation or a negative linear correlation. A) negative linear correlation B) positive linear correlation Given the supply of a commodity, x, and the price of a commodity, y, would you expect a positive correlation, a negative correlation, or no correlation? A) negative correlation B) no correlation C) positive correlation If Data A has a correlation coefficient of r = -0.991, and Data B has a correlation coefficient of r = 0.991, which is correct? A) Data A has a stronger linear correlation than Data B. B)Data A has a weaker linear correlation than Data B. C) Data A and Data B have the same strength in near correlation.

Explanation / Answer

1. As i slope of this equation is negative this is negative correlated. Hence answer is A.

2. The law of supply is a fundamental principle of economic theory which states that, all else equal, an increase in price results in an increase in quantity supplied. In other words, there is a direct relationship between price and quantity: quantities respond in the same direction as price changes.

Hence positive correlation answer is C.

3. Strength depends on association not on signs hence both are equally strength. Answer is c.

Related Questions

Navigate

• Browse (All)
• Browse G
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.