Question 1 (5 points) correlation implies causation. question 1 options: true false question 2 (5 points) a correlation between two variables question 2 options: that both variables are always equal that there is no relationship between the variables that a change in one variable is matched by a change in the other variable there is something wrong with the data question 3 (5 points) a negative correlation between two variables question 3 options: both variables are decreasing both variables are increasing there is no correlation when one variable goes up, the other goes down question 4 (5 points) a strong linear correlation question 4 options: both variables are increasing the graph of data points stay close to a line there is a wide spread in the data question 5 (5 points) standard deviation is a measure question 5 options: how linear data is. the spread of data. the difference between the greatest and the lowest values. question 6 (5 points) the formula for standard deviation uses which average? question 6 options: mean median mode zero question 7 (5 points) according the the fundamental counting principal for multiplication, if event a has m possible outcomes and event b has n possible, then even a followed by event b question 7 options: m + n outcomes m - n outcomes m x n outcomes m / n outcomes question 8 (5 points) what is the value of 4! ("four factorial") question 8 options: 4 16 10 24 question 9 (5 points) if the probability of passing an exam is 80%, what is the probability of not passing it? question 9 options: 80% 50% 100% 20% question 10 (5 points) given that when flipping a coin, there is 1/2 chance of getting a heads: what is the probability of flipping a coin and getting heads twice in a row? question 10 options: 1 1/2 1/4 1/2