On January 22 in 1943, the town of Spearfish, South Dakota, set the record for the world's fastest
temperature change.
At 7:30 a. m., the temperature was -4°F.
By 7:32 a. m., the temperature was 45 °F.
By 9:00 a. m. the same day, the temperature was 54 °F.
By 9:27 a. m., the temperature was -4 °F.
How many degrees did the temperature change each
minute from 7:30 to 7:32?
Make sure to show whether the change was positive or
negative.

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