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In mid-term test of GIS class, class mean score is 78 and standard deviation is 3....

In mid-term test of GIS class, class mean score is 78 and standard deviation is 3. Suppose, Adam has mid-term score of 84. Answer following questions:
a) What is Adam’s Z-score?
b) FindthepercentageofstudentsthatscoredhigherandlowerthanAdam.
c) What score would Adam have to achieve to be in the top 1% of the GIS class?

Math   Statistics-And-Probability   
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