subject
Mathematics, 22.06.2019 00:30 sanfordl

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?

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 20:30
Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for
Answers: 2
question
Mathematics, 21.06.2019 23:30
Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same
Answers: 1
question
Mathematics, 22.06.2019 03:30
Y< 2x-3 y? mx+3 which value of m and which symbol result in the system of inequalities shown above having no solution? a) m=-2; > b) m=-1/2; < c) m=2; > d) m=2;
Answers: 3
question
Mathematics, 22.06.2019 06:20
Pqrs is an isosceles trapizoid and s =31 fimd p
Answers: 2
You know the right answer?
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assu...
Questions
question
History, 04.07.2019 13:00
question
Mathematics, 04.07.2019 13:00
question
Biology, 04.07.2019 13:00
question
Biology, 04.07.2019 13:00
Questions on the website: 13722362