Z-score for the value 88, when the mean is 95 and the standard deviation is 7?

brandy32 Posts: 1, Reputation: 1

New Member

Jun 9, 2010, 06:12 AM

z-score for the value 88, when the mean is 95 and the standard deviation is 7?

Statsistics question and math question. Please help as soon as possible thanks

ebaines Posts: 12,131, Reputation: 1307

Expert

Jun 9, 2010, 06:56 AM

$<br /> z = \frac {x-\mu} {\sigma} = \frac {88-95} 7 = -1<br />$

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