|
|
|
|
|
|
|
|
|
Quartiles.
|
There are three quartiles. the first or lower quartile (lq) of a list is a number (not necessarily a number in the list) such that at least 1/4 of the numbers in the list are no larger than it, and at least 3/4 of the numbers in the list are no smaller th
|
|
|
Type i and type ii errors., английский
These refer to hypothesis testing. a type i error occurs when the null hypothesis is rejected erroneously when it is in fact true. a type ii error occurs if the null hypothesis is not rejected when it is in fact false. see also significance level and powe
Control., английский
There are at least three senses of "control" in statistics: a member of the control group, to whom no treatment is given; a controlled experiment, and to control for a possible confounding variable.
|
|
|
|
|
|
|
