Mathematics, 30.04.2021 19:40 jess7kids
A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 100 hours, and distribution approximated by a normal curve. Find the percentage of bulbs that can be expected to last the period of time.
Between 290 hours and 500 hours
Select one:
a. 58.26%
b. 48.2%
c. 58.22%
d. 48.26%
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 18:30
Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!
Answers: 1
Mathematics, 21.06.2019 21:30
Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by
Answers: 1
Mathematics, 21.06.2019 23:30
Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?
Answers: 1
You know the right answer?
A company installs 5000 light bulbs, each with an average life of 500 hours, standard deviation of 1...
Questions
Biology, 01.04.2020 21:05
Geography, 01.04.2020 21:05
Mathematics, 01.04.2020 21:05
Mathematics, 01.04.2020 21:05
Social Studies, 01.04.2020 21:05
Biology, 01.04.2020 21:05
Social Studies, 01.04.2020 21:06
Mathematics, 01.04.2020 21:06
