Question 8 (2 points) The graph below shows the changes in the temperature of ice when it is heated from -20°C to 100°C.
100
D E
80
60
Temperature (°Celsius)
40
20
0
B
С
-20/A
Addition of heat over time
2010 FLVS
Based on the graph, which of these conclusions is correct? (2 points)
Оа
Heat is not added in portions BC and DE
Oь
Heat is not added in portions AB and CD.
Change of state takes place in portions BC and DE
Ос
Od
Change of state takes place in portions AB and CD.

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