1.You are playing a board game online where you roll two dice whenever it is your turn.You know that there dice are not independent: the probability that both dice will roll number 6 is 0.27. what is the probability that at least one of them rolls a 6, given that you know they are not independent? You can treat the die as fair when considering a single die's roll.

2.Consider the following linear model: y= a+1.5x this linear model forecasts total book sales in units (in 1,000s) given the total amount of pre- order sales (in $1,000) identified by variable x. Calculate the value of the intercept (y-intercept) given that if the amount of pre-order sales is $2000 then the predicted sales volume is y=7800 units. (Hint: notice that both and y are expressed in 1000 units in the regression model).