Each of the following statements contains a blunder. Explain in each case what is wrong.
“The correlation between y and x is r = 0.5 but the correlation between x and y is r = −0.5.”
“There is a high correlation between the color of a smartphone and the age of its owner.”
“There is a very high correlation (r = 1.2) between the premium you would pay for a standard automobile insurance policy and the number of accidents you have had in the last three years.”