Please answer this questions.

1.. In the expansion of (x - 3/x²)⁹ find the term containing x⁶.

2.. For a distribution N(4, 0.39²), determine the percent of the data that is within the interval 1.64 3.56.

3.. In how many ways can three different awards be distributed among 20 students in the following situations?

a) No students may receive more than one award.

b) There is no limit in the number of awards won by one students.

32. Professor Jackson teaches chemistry with 15 students. Last week she gave a midterm worth 100 points. Her grading scale and grade book are shown below. Score Grade 90 100 A 80 89 B 70 79 c 69 and below F Create a relative frequency graph that shows the proportion of each possible grade. (5 marks) Make sure to show calculations for full marks Student Midterm Score 72 93 53 97 84 82 65 72 92 85 73 66 88 81 60