The average income tax refund for 2009 tax year was 3095

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Reference no: EM13618906

The average income tax refund for 2009 tax year was $3095. Assumes the refund per person follows the normal probability distribution with a standard deviation of $922. Round all answers 4 decimal places.

A. The probability that a randomly selected tax return refund will be more then $2100 is?

B. The probability that a randomly selected tax return refund will be between $1400 and $2000 is?

C. The probability that a randomly selected tax return refund will be between $3300 and $4400 is?

D. What refund amount represents the 35th percentile of tax returns?

Reference no: EM13618906

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