What is the dependent variable? What is the independent variable? The total cost C, in dollars, to dry clean a certain number of shirts s is given by the equation C=3.25s. Question 1

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Proportions in triangles solve for x

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