Will and Mohammed are playing a game where they roll a fair six-sided die and a fair four-sided die and try to predict the outcomes. Will thinks that the probability of not rolling any even numbers is greater than the probability of rolling exactly one even number. Mohammed disagrees. He thinks that the probability of rolling exactly one even number is greater.
Based on the sample space of possible outcomes listed below, who is correct, Will or Mohammed?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Which of the following is another way to express the difference between -5 and 8?

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