What is the principle behind the operation of a washing

Which option is incorrect?

From standard pack of 52 cards, 3 cards are drawn at random without replacement. The probability of drawing a king, a queen and a jack in order is

If A and B are mutually exclusive, the general addition rule is:

If the difference between the rank of the 4 observations are 2.5, 0.5, -1.5, -1.5, then Spearman's rank correlation coefficient equals to:

If Z follows standard normal distribution with mean 0 and variance 1, then Z² follows:

At a round table, n persons are seated on n chairs. The probability that two friends from same college are sitting next to each other, is:

For the ANOVA which of the following options is INCORRECT.

1.       Null hypothesis H0 : μ1 = μ2 = ... = μn