1. Order counts in permutations. For combinations, only the final result matters, not how you get to it. Order does not count for combinations.

  2. This is asking for combinations with 5 items (types of toppings) taken 2 at a time. 5!/(3! \times 2!) =120/12 = 10.

  3.  Since these are independent events you apply the multiplication rule: (.5 x .1667 = .0833)

  4. This is asking for permutations with 5 items (entries) taken 2 at a time (first place and second place). 5!/(3!) =120/6 = 20.
Callback before_footer in local_aigrade component should be migrated to new hook callback for core\hook\output\before_footer_html_generation
  • line 7225 of /lib/moodlelib.php: call to debugging()
  • line 7292 of /lib/moodlelib.php: call to {closure}()
  • line 71 of /lib/classes/hook/output/before_footer_html_generation.php: call to get_plugins_with_function()
  • line 987 of /lib/classes/output/core_renderer.php: call to core\hook\output\before_footer_html_generation->process_legacy_callbacks()
  • line 154 of /mod/book/view.php: call to core\output\core_renderer->footer()