In terms of the trigonometric ratios for ΔBCD, what is the length of CD? Insert text on the triangle in GeoGebra to show the length of CD . Take a screenshot of the triangle with the text, save it, and insert the image in the space below.

What is the volume of the sphere shown below with a radius of 3?

Which letters from the table represent like terms? a and b b and c a and d b and d

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