A set of 12 cards is numbered 1, 2, 3, ... 12. Suppose
you pick a card at random without looking. Find
the probability of each event. Write as a fraction in
simplest form.
5.
P(5)

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Which of the following expressions cannot be simplified to x – 2?

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