What determines if a transformation is necessary? After a standard regression analysis, the residual plot is random. After the original data are plotted on a scatterplot, the data are linear. After standard regression analysis, the residual plot is not random. If the correlation coefficient of the original data is negative The r-squared of the original data is close to 1.

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

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