Consider an 9-by-9 board and nine rooks of which five are red and four are blue. suppose you place the rooks on the board in nonattacking positions at random. what is the probability that the red rooks are in rows 1,3,5,7, 9? what is the probability that the red rooks are both in rows 1,2,3,4,5 and in columns 1,2,3,4,5?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

An electrician cuts a 136 foot long piece of cable. one piece is 16 feet less than 3 times the length of the other piece. find the length of each piece

Can someone me find the original price? the discount is 5% and the sale price is $68.40