R Coding Data Analysis and Statistics Quiz

$R^2 = \frac{SS_{reg}}{SS_{tot}}$

$R^2 = 1 - \frac{SS_{reg}}{SS_{tot}}$

$R^2 = 1 - \frac{SS_{reg}}{n-1}$

$R^2 = 1 - \frac{SS_{res}}{SS_{tot}}$ (correct)

The probability of correctly accepting the null hypothesis

The probability of incorrectly rejecting the null hypothesis

The probability of observing a test statistic exactly at the one actually observed

The probability of observing a test statistic as extreme as, or more extreme than, the one actually observed, assuming that the null hypothesis is true (correct)

The probability of the intersection of two independent events is equal to the product of their individual probabilities

The probability of the complement of an event is equal to 1 minus the probability of the event (correct)

The probability of the intersection of two events is equal to the sum of their individual probabilities minus the probability of their union

The probability of the union of two events is equal to the sum of their individual probabilities

<p>Variance</p> Signup and view all the answers

<p>Stratified sampling</p> Signup and view all the answers

<p>$P(A) imes P(B)$</p> Signup and view all the answers