8. At a high school, 29% of students are freshmen. Let X = the number of students that are freshman in a random sample of 25 students from the school. Which one of the following statements about the mean and standard deviation of the sampling distribution of X is true? O Hx = 7.25; ox = 2.27 (b) Hx = 7.25; 0x = 0.45 o My = 7.25; standard deviation cannot be determined from the information given. O d) Neither the mean nor the standard deviation can be determined from the information given