Given ABCD is a parallelogram. Prove: line AB is congruent to line CD and line BC is congruent to line DA

Which of the following parabolas opens up?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.

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