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April 1, 2015

April 1, 2015

Posted by **Tara** on Saturday, August 24, 2013 at 6:47pm.

16) Given that the passing score is 65, approximately what percentage of students passes the first exam?

17) What is the probability that the student will score an “A” on the exam? (A score of 90 or more)

18) The middle 95% of the scores will tend to fall between _________ and ________.

- Statistics -
**PsyDAG**, Monday, August 26, 2013 at 1:31pm16. Z = (score-mean)/SD

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to to the Z score.

17. Use same equation and table.

18. Use table to find P = ± ,45 to get the two Z scores. Insert into equation above.

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