Afarmer has 10 acres to plant in corn and oats. he has to plant at least 7 acres. however, he has only $1200 to spend and each acre of corn costs $200 to plant and each acre of oats costs $100 to plant. moreover, the farmer has to get the planting done in 12 hours and it takes an hour to plant an acre of corn and 2 hours to plant an acre of oats. if the profit is $500 per acre of corn and $300 per acre of oats, how many acres of each should be planted to maximize profits?

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