D. Power and Associates says that 50 percent of car buyers now use the internet for research and price comparisons. a) Find the probability that in a sample of 8 car buyers, all 8 will use the Internet. (Round your answer to 4 decimal places.) b) Find the probability that in a sample of 8 car buyers, at least 5 will use the Internet. (Round your answer to 4 decimal places.) c) Find the probability that in a sample of 8 car buyers, more than 4 will use the Internet. (Round your answer to 4 decimal places.) d) Find the mean and standard deviation of the probability distribution. (Round your mean value to 2 decimal places and standard leviation to 4 decimal places.)