Which statement can be used to prove whether the conjecture is true or false? What does the statement prove?
Conjecture: The sum of the lengths of any two sides of a rectangle is half the perimeter of the rectangle.
с
B
D
4
4
4
А
E
3 F
3
The perimeter of FCDE is 14 and FC + CD=7
The perimeter of FCDE is 14 and FE + DE = 7
The perimeter of ABDE is 20 and AB + BD = 10.
The perimeter of ABDE is 20 and AB + DE = 8.
The statement proves that the conjecture is false v

In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000