Question 1 out of 6.

A distribution has a mean of 40 and a standard deviation of 5. 68% of the distribution can be found between what two numbers?

  1. 30 and 50
  2. 0 and 45
  3. 0 and 68
  4. 35 and 45
Question 2 out of 6.

A distribution has a mean of 20 and a standard deviation of 3. Approximately 95% of the distribution can be found between what two numbers?

  1. 17 and 23
  2. 14 and 26
  3. 10 and 30
  4. 0 and 23
Question 3 out of 6.

A normal distribution has a mean of 5 and a standard deviation of 2. What proportion of the distribution is above 3?

Question 4 out of 6.

A normal distribution has a mean of 120 and a variance of 100. 35% of the area is below what number?

Question 5 out of 6.

A normal distribution of test scores has a mean of 38 and a standard deviation of 6. Everyone scoring at or above the 80th percentile gets placed in an advanced class. What is the cutoff score to get into the class?

Question 6 out of 6.

A normal distribution of test scores has a mean of 38 and a standard deviation of 6. What percent of the students scored between 30 and 45?

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()