In a poll about work, 48% of respondents said that their jobs were sometimes or always stressful. Ten workers are chosen at random. 1.) What is the mean number who find their jobs stressful in a sample of 10 workers? Round the answer to two decimal places. The mean number who find their jobs stressful is what? 2.) What is the standard deviation of the number who find their jobs stressful in a sample of 10 workers? Round the answer to four decimal places. The standard deviation of the number who find their jobs stressful is