subject
Mathematics, 25.08.2021 20:10 fdelacruz19

The average life of a bread-making machine is 7 years, with a standard deviation of 1 year. Assuming that the lives of these machines follow approximately a normal distribution, find the probability that the mean life of a random sample of 9 such machines falls between 6.4 and 7.2 years.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 14:00
Use the knowledge of x- and y- intercepts to choose the correct graph of the equation 3x+6y=6
Answers: 1
question
Mathematics, 21.06.2019 17:00
Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv
Answers: 3
question
Mathematics, 21.06.2019 23:40
Which set of side lengths form a right side? a) 3ft,6ft,5ft b)50 in,48in,14in c)53m,48m,24m d)8cm,17cm,14cm
Answers: 2
question
Mathematics, 22.06.2019 02:00
Elm street is straight. willard's house is at point h between the school at point s and the mall at point m. if sh = 3 miles and hm = 4.5 miles, what is the value of sm in miles?
Answers: 1
You know the right answer?
The average life of a bread-making machine is 7 years, with a standard deviation of 1 year. Assuming...
Questions
question
Mathematics, 18.12.2020 15:30
question
Mathematics, 18.12.2020 15:30
question
Social Studies, 18.12.2020 15:30
question
English, 18.12.2020 15:30
question
Mathematics, 18.12.2020 15:30
question
World Languages, 18.12.2020 15:30
question
English, 18.12.2020 15:30