The following graph represents real estate prices in a given area over a period of 28 years.
A graph titled Prices. From year 0 to 4, the graph increases; from 4 to 6, decreases; from 6 to 8, remains steady; from 8 to 10, increases rapidly; from 10 to 18, decreases; from 18 to 20 increases; from 20 to 22, decreases; from 22 to 28, increases.
Using the above information, which kind of investor would likely turn the greatest profit in this market, given that each of them purchased a house in this area at year 0?
a.
A long-term investor, who wishes to hold onto the house for an extended period and rent it out in the meantime.
b.
A house flipper, who will sell the house as soon as the market increases its value.
c.
A moderate-term investor, who will sell the house once it reaches a certain price.
d.
A cautionary investor, who will sell the house in order to minimize losses as soon as the prices begin to drop.

A

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