The following population data demonstrate the association between stress (X) and happiness (Y) of 10 people. 1) A. What is the formula to calculate the correlation between stress and happiness? B. What is the name of the formula? 2) Calculate the correlation between stress and happiness if the standard deviation of X = 7.23 and Y = 2.70. 3) Interpret the result. 4) Based on the result, can you conclude a cause-and-effect relationship between stress and happiness? Yeso, and Why? # X Y 1 ll 7 2' 25 l 3 l9 4 4 7 9 5 23 2 6 6 8 7 ll 8 8 22 3 9 25 3 1 D D h