It's the 2ed one I would like to get help with. I am in Stats 12 grade. The concept is combinations and the equation to help with these is 6C4 (.27)^4 (.73)^2. This is the probability part of the year, prompt is use this reasoning to calculate the following probabilitys show work. Its saying to set it up like this : set up successes (.27)^4 multiply, failures (.73)^2, and multiply by the number of ways to arrange the successes throughout all the positions, 6C4

C) P(I or 2 smokers in a group of 5) -"or" means... D) P(at least 1 smoker in a group of 8) --think opposites