Challenge The value of a baseball player's rookie card began to increase once the player retired. When he retired in 2000 his card was worth $4.73. The value has increased by $1.43 each year
since then. Express the relationship relating the value of the card y in dollars and the number of
years x the player has been in retirement with an equation. Is the relationship between x and y
proportional? What was the value of the card in 2007?
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If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average