assume distributed assume distributed normally. and what about P(X>=54)? Thanks in advance.
Last edited by beetz; Oct 22nd 2007 at 07:38 AM.
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Just use $\displaystyle z=\frac{x-{\mu}}{\sigma}$
the answer i obtain from that is my final answer, correct?
You will have to look up the probability in the z-table which corresponds to the z-score you find from the formula.
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