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OpenStudy (anonymous):
Statistics help!!!
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OpenStudy (campbell_st):
well you could find a z score... it will tell you how many standard deviations you are below the mean... then use a table of values to get a probability best guess is that a score of 200 is in the bottom 3% of scores...
OpenStudy (campbell_st):
z score = ( score - mean)/standard deviation
OpenStudy (campbell_st):
well its a table with a whole lot of z scores in it... and then you go and find the value... you must have used one to complete these type of questions... its a normal distribution... or perhaps its a calculator function.
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