For items 16-21 given the scores of 20 students in 40-item math test below. 30, 32, 34,24, 34, 25, 27, 28, 32, 39 21, 17, 35, 40, 27, 31, 39, 23, 40, 32 16. What is the median? a) 30 b) 31 c) 31.5 d) 32 17. What is the first quartile score? a) 25.25 b) 25.5 c) 25.75 d) 26 18. What is the 45th percentile? a) 30.45 b) 30.5 c) 31 d) 31.5 19. What is the 8th decile? a) 37 b) 37.5 c)38.2 D) 38.6 20. What is the percentile score of 40? a) 9th b) 10th c) 11th d) 12th 21. What is the percentile score of 40? a) 90th b) 95th c) 99th d) 100th 22. Which of the following statements is/are true? 1. The 4th decile is not affected by an increase in the highest score. II. A student who got a percentile rank of 85% in an examination means the student go a)l only b) Il only c) I and II 23. Which of the following statements is correct? d) none 1. Deciles divide a data set into four equal parts. II. A percentile rank of 75 in a set of data means that the score is higher than 75% of a a) I only b) Il only c) I and II 24. In the data so​