According to the Intern al Pevenue Service, the mean tax refund for the year 2014 was $2800 Assu me the stan dard deviation is $450 an d that the amounts retunded follow a normal probabilty distribution. a. What percent of the refunde are more th an $3,00? (Round the Intermediate values to 2 decimal piaces. Round your answer to 2 decimal pleces) Percert 025 1 b. What percent of the refun ds are more th an $3300 but less th an $3.500? (Round the intermed iate values to 2 decimal places Round your ans wer to 2 decimal places) Peroert c. What percent of the refun ds are more th an $2,250 but less than $3,500? (Round the intermediate vol ues o 2 decimel places Round your answer to 2 decimel places) Peroert
According to the Intern al Pevenue Service, the mean tax refund for the year 2014 was $2800 Assu me the stan dard deviation is $450 an d that the amounts retunded follow a normal probabilty distribution. a. What percent of the refunde are more th an $3,00? (Round the Intermediate values to 2 decimal piaces. Round your answer to 2 decimal pleces) Percert 025 1 b. What percent of the refun ds are more th an $3300 but less th an $3.500? (Round the intermed iate values to 2 decimal places Round your ans wer to 2 decimal places) Peroert c. What percent of the refun ds are more th an $2,250 but less than $3,500? (Round the intermediate vol ues o 2 decimel places Round your answer to 2 decimel places) Peroert
Chapter2: Mathematics For Microeconomics
Section: Chapter Questions
Problem 2.16P
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