Thirty percent of the cars that come into our repair shop need an oil change. On Saturday, we expect 50 cars to come in. We want to determine the probability that at least 25 will need an oil change. What statistical method would we best to use? Histogram Binomial probability distribution Normal probability distribution Conditional probabilityA car company sells six models of cars. They would like study sales by car model (e.g. Camaro, Impala, etc.). Which graph would provide the most effective presentation? Bar chart Stem and leaf diagram Scatter plot Pie chart