AI SL: Paper 1 (TZ2 May 2021)

Chapters
0:00 (1a) Initial dose and %
3:24 (1b) Amount after 10 hours
4:30 Answer key 1
5:20 (2a) Distance
8:28 (2b) Coordinates midpoint
10:10 (2c) Height (x,y,z)?
11:52 Answer key 2
12:25 (3) Surface Area
21:26 Answer key 3
22:04 (4a) Angle of depression
24:02 (4b) Distance A to C
27:07 (4c) Distance B to C
31:02 (4d) Metres per hour?
32:30 Answer key 4
32:45 (5a) Interpreting a box and whisker
35:32 (5b) Paul is correct?
38:47 Answer key 5
39:29 (6a) Perpendicular bisector
49:14 (6b) Coordinates bus stop
53:27 Answer key 6
53:46 (7a) Range
59:39 (7b) Inverse function
1:03:33 Answer key 7
1:04:06 (8a) Null and alternative hypotheses
1:06:02 (8b) P-value
1:09:23 (8c) Conclusion to the test?
1:11:24 Answer key 8
1:11:51 (9a) Footpath length
1:14:23 (9b) Area of the lawn
1:19:03 Answer key 9
1:19:22 (10a) Compound interest easy
1:23:17 (10b) Compound interest hard
1:29:10 Answer key 10
1:30:44 (11a) Estimate copies each day
1:31:22 (11bi) Degrees of freedom
1:31:58 (11bii) Conclusion to the test?
1:37:51 Answer key 11
1:38:20 (12a) Value of p
1:40:20 (12b) Values of a, b and c
1:47:15 (12c) Axis of symmetry
1:48:35 Answer key 12
1:49:05 (13a) P in terms of x
1:55:41 (13b) How profit changes?
2:00:12 Answer key 13