In order to specify the minimum percentage of observations that ...

[krzymel]

In order to specify the minimum percentage of observations that will fall within a given number of standard deviations from the mean, ___________________ _ applies to any distribution, regardless of shape of the distribution, while the ___________________ _ applies only to distributions that are bell-shaped and symmetrical.
 Fill in the blank(s) with correct word

Question 2

____________________ divide the values into 10 parts of equal size, each comprising 10 of the observations.
 Fill in the blank(s) with correct word

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Answer to Question 1

Chebyshev's theorem; empirical rule

Answer to Question 2

Deciles