Jenny and Melissa are stuck simplifying radical expressions. Jenny has to simplify x2/3 over x1/6 Ñ. Melissa has to simplify 30 radical x^2•x5•x^7. Using full sentences, describe how to fully simplify Melissa's expressions. Describe if Jenny and Melissa started with equivalent expressions or if they started with expressions that are not equal.

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