11 You are given the following information:

Statistics
Mean	35
Median	34
Mode	28
Q1	26
Q3	43
Minimum	5
Maximum	80

What is the value of the interquartile range?

12 You are given the following coordinates for two points: (2, 8) and (13,20).

What is the value of the slope for the line that connects these two points?

Please give your answer in decimal form correct to 2 decimal places.

13 Here is a sample of data:

6

2

9

3

8

Which of the following is the value of the median?

a 6

b. 2

c. 5.6

d. 9

14 If a principal amount of $405 is invested at 4% interest per annum, for 5 years, what is the future value?

a 1265625.00

b. 421.20

c. 1.22

d. 492.74

15 For Financial Year (FY) 2020, a person spent $4634 on events. In FY 2021, that same person spent $1648 on events (this person must love their social life!). Which of the following represents the percentage change in the events expenditure from FY 2020 to FY 2021?

a. -2986.00

b. -181.19

c. -64.44

d. 64.44

16 All you are told about a 99% confidence interval for the population mean is that the interval is (33.5, 39.2).

Which of the following is the value of the margin of error for this confidence interval?

a. -5.7

b. -2.9

c. 2.576

d. 2.9