subject
Mathematics, 07.04.2020 23:41 keee92

Laboratory tests show that the lives of
light bulbs are normally distributed with
a mean of 750 hours and a standard
deviation of 75 hours. Find the
probability that a randomly selected
light bulb will last between 600 and 750
hours.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 21:00
With both problems. a.s.a.p directions on photo ^
Answers: 1
question
Mathematics, 21.06.2019 21:20
The radius of the circle below intersects the unit circle at (3/5,4/5). what is the approximate value of theta? 0.6 radians 1.0 radians 36.9 degrees 53.1 degrees
Answers: 3
question
Mathematics, 22.06.2019 00:20
Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.
Answers: 2
question
Mathematics, 22.06.2019 00:30
What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio
Answers: 1
You know the right answer?
Laboratory tests show that the lives of
light bulbs are normally distributed with
a mean...
Questions
question
Mathematics, 20.06.2019 18:04
question
History, 20.06.2019 18:04
Questions on the website: 13722360