Mr. Malloy wants to make sure Amo and Javier get the best possible grade after five tests and can either give a grade based on the median or the mean. Test Number Amo’s Scores Javier’s Scores 1 97 68 2 92 97 3 89 65 4 55 92 5 90 65 What measure of center should Mr. Malloy use for Amo and for Javier for the best possible grade? The teacher should use the mean for both Amo and Javier. The teacher should use the median for both Amo and Javier. The teacher should use the median for Amo and the mean for Javier. The teacher should use the mean for Amo and the median for Javier.

1. why is a frequency distribution useful? it allows researchers to see the "shape" of the data. it tells researchers how often the mean occurs in a set of data. it can visually identify the mean. it ignores outliers. 2. the is defined by its mean and standard deviation alone. normal distribution frequency distribution median distribution marginal distribution 3. approximately % of the data in a given sample falls within three standard deviations of the mean if it is normally distributed. 95 68 34 99 4. a data set is said to be if the mean of the data is greater than the median of the data. normally distributed frequency distributed right-skewed left-skewed