Chi Square Distribution

Questions

Question 1 out of 4.

Imagine that you sample 12 scores from a standard normal distribution, square each score, and sum the squares. How many degrees of freedom does the Chi Square distribution that corresponds to this sum have?

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Question 2 out of 4.

What is the mean of a Chi Square distribution with 8 degrees of freedom?

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Question 3 out of 4.

Which Chi Square distribution looks the most like a normal distribution?

  1. A Chi Square distribution with 0 df
  2. A Chi Square distribution with 1 df
  3. A Chi Square distribution with 2 df
  4. A Chi Square distribution with 10 df
Question 4 out of 4.

Imagine that you sample 3 scores from a standard normal distribution, square each score, and sum the squares. What is the probability that the sum of these 3 squares will be 9 or higher?

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  • line 7292 of /lib/moodlelib.php: call to {closure}()
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  • line 154 of /mod/book/view.php: call to core\output\core_renderer->footer()