Measures of Variability

Questions

Question 1 out of 4.

What is the range of 2, 4, 6, and 8?

________

Question 2 out of 4.

Would the variance of 10, 12, 17, 20, 25, 27, 42, and 45 be larger if the numbers represented a population or a sample?

  1. Population
  2. Sample

Question 3 out of 4.

What is the standard deviation of this sample?

________

  Y

  8

  5

 11

 11

 15

  9

  7

 18

Question 4 out of 4.

What is the interquartile range of these numbers?

________

Z

 12

 13

 14

 15

  9

 10

 16

 10

  8

 10

 11

 12

 13

 22

 23

 24

 25

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  • 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()