Ethan's class is handing out balloon arrangements consisting of 4 balloons each. each balloon has an equally likely chance of being red, blue, or yellow. ethan created a spinner to simulate this probability. here is ethan's data from 30 trials of 4 spins on the spinner (r = red, b = blue, y = yellow): ybrr bybb rbbb rrry rbbb rryy yybb ryry ryyr rbyr ryyr rryy yrby bbyy byyr byyr byyb rbby ybry rryy rbrr rybb bbbr rrbr ybry ryrr rryb rrrb rryr according to this data, what is the experimental probability that an arrangement will contain exactly one blue balloon?

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