The correlation measures spread relative to means. For each cereal, we will determine how much its sugar amount differs from the mean amount ofsugar for all ofthe cereals in the sample. This is x 7?. Then we divide by the standard deviation to translate the distance xi into a standardized value: 5 X Similarly, we will determine how much its Consumer Report rating differs from the mean rating and translate this into a standardized value: ysi. These standardized values are y called z-scores. The next step is to multiply the standardized values together. e) Let's practice calculating the term in the correlation formula for the cereal that contains 3 grams of sugar in a serving and has a Consumer Report rating of 50. The means and standard deviations for the 5 cereals in the sample are given in the table below. difference from mean x_ x_ 5x i _ 5y _ Standard deviation \"1 Consumer Re nort Ratin. \