Alex’s paycheck for the last two weeks totaled $239.64. He owes the cell phone company $45.87. How much money does he have left?
2 answers:
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If is a random variable representing test scores, then the 41st percentile is the score
such that
. Transform
to the random variable
that follows the standard normal distribution via
:
The -score for the 41st percentile is about -0.2275, so