b) Choose the correct answer below. . This interpretation is implying a causal relationship. Here, one could say that an increase of 5% in Literacy Rate is associated with an average 2-year improvement in Life Expectancy. . The y-intercept measures the relationship between the two lines. Here, one could say that the y-intercept of the line shows that an increase of 5% in Literacy Rate will produce a 2-year improvement in Life Expectancy. . The relationship is actually negative. Here, the slope of the line shows that a decrease of 5% in Literacy Rate will produce a 2-year improvement in Life Expectancy. . The student switched the variables. Here, the slope of the line shows that a 2-year improvement in Life Expectancy will produce an increase of 5% in Literacy Rate