HELP ASAP BECAUSE IM STUCK ON THIS QUESTION
...
Answers: 2
Mathematics, 22.06.2019 00:30
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
Answers: 2
History, 01.12.2019 03:31
Mathematics, 01.12.2019 03:31
Biology, 01.12.2019 03:31
English, 01.12.2019 03:31
Biology, 01.12.2019 03:31
English, 01.12.2019 03:31
Mathematics, 01.12.2019 03:31
Mathematics, 01.12.2019 03:31
History, 01.12.2019 03:31
Biology, 01.12.2019 03:31
Mathematics, 01.12.2019 03:31
Biology, 01.12.2019 03:31