AP PSYCHOLOGY

Detailed explanation-1: -The median is the middle observation that divides the scores into two equal parts, so it is unaffected by extreme values, whereas the mean is the average of the dataset that is dependent on all scores, so extreme high scores are likely to have the highest effect on the mean.

Detailed explanation-2: -The answer is A) Mean The mean is another word to say “the average.” When there is an outlier in the data set, the mean is most affected. The mean is the only measure of central tendency that an outlier will always have an affect on.

Detailed explanation-3: -The mean is the measure of central tendency most likely to be affected by an extreme value. Mean is the only measure of central tendency which depends on all the values as it is derived from the sum of the values divided by the number of observations.

Detailed explanation-4: -Arithmetic mean takes into account the value of all items (i.e. very large and very small) in a series. Thus, it is only arithmetic mean which is affected by extreme values in the series.