Mathematics, 18.07.2020 18:01 Arelysoqui91
Sam and Taylor own and operate a car wash service. Sam cleans the interior of each car and Taylor cleans the exterior. The time it takes Sam to finish the interior has a mean of 20 minutes with a standard deviation of 6.4 minutes. The time it takes Taylor to finish the exterior has a mean of 18 minutes with a standard deviation of 4.8 minutes. Both of their finishing times are approximately normally distributed. Suppose we select a car at random, and define the random variable D as the difference between their finishing times. We can assume that their times are independent. Find the probability that they finish within 10 minutes of each other. (Hint: Combine the mean and Standard Deviation and then find the standard Normal Random variable)
Answers: 3
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 19:50, khenalilovespandas
Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.
Answers: 1
Mathematics, 22.06.2019 00:30, angelthompson2018
Francisco's credit card has an apr of 28.98%, calculated on the previous monthly balance. his credit card record for the last 7 months is shown in the table below francisco is trying to figure out what this all means. answer the following questions: what is the total amount that francisco has paid in interest over the 7 months? what is the total amount that francisco has made in payments over the 7 months? how much of francisco's payments have gone to paying down the principal on his account? what is francisco's new balance at the end of month 8? what will francisco be charged for interest for month 8?
Answers: 2
You know the right answer?
Sam and Taylor own and operate a car wash service. Sam cleans the interior of each car and Taylor cl...
Questions in other subjects:
