SAT scores: Assume that in a given year the mean mathematics SAT score was 524, and the standard deviation was 118. A sample of 66 scores is chosen. Use Excel. (b) What is the probability that the sample mean score is between 481 and 529? Round the answer to at least four decimal places. The probability that the sample mean score is between 481 and 529 is XSmartphones: A poll agency reports that 40% of teenagers aged 12-17 own smartphones. A random sample of 125 teenagers is drawn. Round your answers to at least four decimal places as needed.(b) Find the standard deviation on. P The standard deviation on is X