I need question 11-12 to be answered only

For questions 9-12. The average age of tennis players in French Open 2020 is 28.3 years old and has a standard deviation of 2.3 years. If we can assume the ages are normally distributed, what is the probability that the average age of 10 randomly selected players is younger than 27 years old? 9. What is the value of the mean of the sample means? A. 2.3 C. 28.3 B. 27 D. 40 10. What is the value of the standard deviation of the sampled population? A. 0.23 C. 2.3 B. 0.73 D. 28.3 11. Which of the following probability notations represents the z-score? A. P z 27 D. P( z