I don’t get this at all please help
...
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 02:30
Joyce deposited $5000 in an account with an annual interest rate of 6%, compounded annually. how much money will be in the account 10 years later
Answers: 2
Mathematics, 24.09.2020 02:01
Advanced Placement (AP), 24.09.2020 02:01
History, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Biology, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Spanish, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01
Mathematics, 24.09.2020 02:01