SOLUTION: Maria and Zoe are taking Biology 101 but are in different classes. Maria’s class has an average of 78% with a standard deviation of 5% on the midterm while Zoe’s class has an avera

Algebra ->  Probability-and-statistics -> SOLUTION: Maria and Zoe are taking Biology 101 but are in different classes. Maria’s class has an average of 78% with a standard deviation of 5% on the midterm while Zoe’s class has an avera      Log On


   



Question 826987: Maria and Zoe are taking Biology 101 but are in different classes. Maria’s class has an average of 78% with a standard deviation of 5% on the midterm while Zoe’s class has an average of 83% with a standard deviation of 12%. Assume that scores in both classes follow a normal distribution. Now suppose that Maria scored an 84 on the midterm exam and Zoe scored an 89.
Convert Maria’s midterm score of 84 to a standard z-score, rounded to the nearest tenth, and place it in the blank. z-score =

Answer by stanbon(75887) About Me  (Show Source):