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u=76 SD=12, tom scored 8 points below the mean. mary had a score of x=73, and bill had a z score of z=-0.50.

u=76 SD( standard deviation)=12, tom scored 8 points below the mean. mary had a score of x=73, and bill had a z score of z=-0.50. place these three students in order from lowest to highest score
 
lowest
middle 
highest 
 
wrong answer: low-bill mid-mary high-tom 

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Francisco E. | Francisco; Civil Engineering, Math., Science, Spanish, Computers.Francisco; Civil Engineering, Math., Sci...
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u=76 SD=12, tom scored 8 points below the mean. mary had a score of x=73, and bill had a z score of z=-0.50.
Then Tom = 76-8=68
To finish we know that Z=(x-u)/δ
Then x will be 0.5 * 12 + 76 = 82
The order will be
Bill 82 Highest
Mary 73 mid
Tom 68 low

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