Mathematics, 07.06.2021 01:20 jonathanmalone
Engineers speculate that W, the amount of weight (in units of 1000 pounds) that a certain span of a bridge can withstand without structural damage resulting, is normally distributed with mean 400 and standard deviation 40. Suppose that the weight (again, in units of 1000 pounds) of a car is a random variable with mean 3 and standard deviation.3. Approximately how many cars would have to be on the bridge span for the probability of structural damage to exceed .1?
A. 106
B. 123
C. 120
D. 115
E. 117
Answers: 3
Mathematics, 21.06.2019 19:30
Nikolas calculated the volume of the prism. his work is shown below.
Answers: 1
Mathematics, 21.06.2019 19:50
What is the solution to the equation below? 3/x-2+6=square root x-2 +8
Answers: 1
Mathematics, 22.06.2019 00:00
How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?
Answers: 2
Engineers speculate that W, the amount of weight (in units of 1000 pounds) that a certain span of a...
Law, 15.04.2021 15:50
Social Studies, 15.04.2021 15:50
Mathematics, 15.04.2021 15:50
Law, 15.04.2021 15:50
Mathematics, 15.04.2021 15:50
History, 15.04.2021 15:50