Mathematics, 14.02.2020 01:19, antonio97
9.According to the National Bridge Inspection Standards (NBIS), public bridges over 20 feet in length must be inspected and rated every 2 years. The NBIS rating scale ranges from 0 (poorest rating) to 9 (highest rating). University of Colorado engineers used a probabilistic model to forecast the inspection ratings of all major bridges in Denver. (Journal of Performance of Constructed Facilities, Feb. 2005.) For the year 2020, the engineers forecast that 9% of all major Denver bridges will have ratings of 4 or below. a. Use the forecast to find the probability that in a random sample of 10 major Denver bridges, at least 3 will have an inspection rating of 4 or below in 2020. b. Suppose that you actually observe 3 or more of the sample of 10 bridges with inspection ratings of 4 or below in 2020. What inference can you make
Answers: 1
Mathematics, 21.06.2019 18:20, mairealexander87
The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?
Answers: 2
Mathematics, 21.06.2019 18:30, BreBreDoeCCx
Solve the system of equations y= 3/2 - 1, -x+ y =-3
Answers: 1
Mathematics, 21.06.2019 21:00, minasotpen1253
Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day
Answers: 1
9.According to the National Bridge Inspection Standards (NBIS), public bridges over 20 feet in lengt...
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