When data consist of percentages, ratios, growth rates, or other rates of change, the geometric mean is a useful measure of central tendency. for n data values the geometric mean, assuming all data values are positive, is as follows. to find the average growth factor over 5 years of an investment in a mutual fund with growth rates of 9.3% the first year, 12% the second year, 14.5% the third year, 4.6% the fourth year, and 5.7% the fifth year, take the geometric mean of 1.093, 1.12, 1.145, 1.046, and 1.057. find the average growth factor of this investment. (round your answer to four decimal places.) geometric mean = n product of the n data values?

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

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

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.