In order to know the z-score, given a test score, you must also know the mean and the standard deviation. Please restate the question.
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each question, if equal points per question, is 1/1.10 = 0.9 points; you need to answer 77 questions out of 110 correctly to score a 70
If the Z Score of a test is equal to zero then the raw score of the test is equal to the mean. Z Score = (Raw Score - Mean Score) / Standard Deviation
score of 92
The test is designed so that a score of 100 is average; 108 is slightly above average.
That is above average score for anyone. A person who has an IQ between 90 and 110 is considered average.