NEED HELP ASAP on #1-#3
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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
Mathematics, 22.06.2019 03:20
Why is partitioning a directed line segment into a ratio of 1: 3 not the same as finding the length of the directed line segment?
Answers: 1
Chemistry, 28.11.2019 10:31
History, 28.11.2019 10:31
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Business, 28.11.2019 10:31
Mathematics, 28.11.2019 10:31
History, 28.11.2019 10:31
History, 28.11.2019 10:31
Mathematics, 28.11.2019 10:31