
Kendra F. answered 08/25/16
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Would the distribution of scores approximate a normal curve?
A. Number of movies a college student watches in a year.
A, would not because it's just one college student and there would be too few data points. Image this as a jumbled bar graph with #movies on y-axis and year on x-axis. This could be if it were plural and took a sampling of all college students from a larger population.
B. Reaction times to recognize a word as fast as you can on a computer screen.
B, would not have a normal bell curve because it's a measure of training/learning over time. Plenty of data points could be recorded but you would expect the reaction times to increase over time and eventually plateau.
A. Number of movies a college student watches in a year.
A, would not because it's just one college student and there would be too few data points. Image this as a jumbled bar graph with #movies on y-axis and year on x-axis. This could be if it were plural and took a sampling of all college students from a larger population.
B. Reaction times to recognize a word as fast as you can on a computer screen.
B, would not have a normal bell curve because it's a measure of training/learning over time. Plenty of data points could be recorded but you would expect the reaction times to increase over time and eventually plateau.