IMPORTANT CORRECTIONS:
The FOR loop should end with 'NEXT i' (as opposed to ENDFOR)
The RAND function returns a REAL number, so we need to cast the result as an INTEGER 'INT(RAND(4)')
In the CASE statement I accidentally omitted the keyword OUTPUT
In the CASE statement we should use percentageScore instead of grade
The REPEAT loop should repeat UNTIL counter = 0
Pseudocode for SET should be as so:
TYPE LetterSet = SET OF CHAR
DEFINE Vowels ('A','E','I','O','U'): LetterSet
(Thanks to @thecrazylazer, @yashshah2941, @huzaifasohail1, ‪@Iroh4u‬, @loup5816 and
@milkbread4527 for spotting these mistakes)

These exercises while guide us through the whole A level pseudocode syllabus.

Resources: https://paulgieske.gumroad.com/l/djhgc
My website: https://paulgieskeblog.com/

I added the following time stamps to help you find specific explanations. (Sorry, it's too complicated to add a time stamp for specific questions.)
00:00:00 Introduction
00:02:21 AS/A2 LEVEL (Papers 1, 2 and 3)
00:12:44 Case
00:21:47 Jim has 22 sweets
00:33:52 StudentRecord
00:38:20 Functions and procedures
00:55:18 Arrays
01:03:44 Loops
01:09:20 Reading and writing files
01:23:12 Comments and string functions
01:25:18 A2 LEVEL (Paper 3 only)
01:25:45 User defined data types
01:38:15 Classes
01:47:00 Handling random files
01:51:15 Exception handling