Mathematics, 27.02.2020 22:14 Brittpaulina
Specifications for an aircraft bolt require that the ultimate ten- sile strength be at least 18 kN. It is known that 10% of the bolts have strengths less than 18 . 3 kN and that 5% of the bolts have strengths greater than 19 . 76 kN. It is also known that the strengths of these bolts are normally distributed.
a. Find the mean and standard deviation of the strengths.
b. What proportion of the bolts meet the strength specification?
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 17:30
Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?
Answers: 3
Mathematics, 21.06.2019 19:30
At the beginning of 1974/75,2 years a man invested #2000 in a bank at 12.5% compound interest, if it degree #650 at the end of each two years to pay his son's school fees, after payment of interest to pay his son's school fees, how much did he have left at the beginning of the 1978/79 school year?
Answers: 3
Mathematics, 21.06.2019 21:40
Drag the tiles to the correct boxes to complete the pairs. using the properties of integer exponents, match each expression with the correct equivalent expression.
Answers: 1
You know the right answer?
Specifications for an aircraft bolt require that the ultimate ten- sile strength be at least 18 kN....
Questions
Chemistry, 07.10.2020 20:01
Chemistry, 07.10.2020 20:01
History, 07.10.2020 20:01
Physics, 07.10.2020 20:01
Biology, 07.10.2020 20:01
Chemistry, 07.10.2020 20:01
English, 07.10.2020 20:01
Mathematics, 07.10.2020 20:01
Physics, 07.10.2020 20:01
Physics, 07.10.2020 20:01
Mathematics, 07.10.2020 20:01
Mathematics, 07.10.2020 20:01
English, 07.10.2020 20:01
Social Studies, 07.10.2020 20:01
