Which of these is a local government representative A. Mayor
B. Senator
C. Member of parliament ​

scores for a single person can still vary widely

Explanation: When making inferences, it is very important to be cautious of factors which may influence and are hence strong determinants in our measurement. That is, when dealing with group data, usually the sample size usually consists of a set of different individuals each with different singular values, these individual values are analyzed and thus we arrive at an average. This average is usually representative of the albeit some little variation. However, thses slight variation should be considered when making inference about a certain or specific individual purely based on the outcome of the data obtained from a group analysis as the score, attribute or value of a single person could still deviate highly from that obtained from the group measurement.