Laboratory tests show that the lives of
light bulbs are normally distributed with
a mean...
Mathematics, 07.04.2020 21:21 Dweath50
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.
4
Answers: 3
Mathematics, 21.06.2019 22:00
The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities
Answers: 1
Mathematics, 21.06.2019 22:00
The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?
Answers: 1
Mathematics, 21.06.2019 23:30
In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.
Answers: 1
Mathematics, 22.06.2019 02:00
Mariano delivers newspaper. he always puts 3/4 of his weekly earnings in his savings account and then divides the rest equally into 3 piggy banks for spending at the snack shop, the arcade and the subway
Answers: 2
Social Studies, 28.10.2020 17:50
English, 28.10.2020 17:50
Mathematics, 28.10.2020 17:50
Mathematics, 28.10.2020 17:50
English, 28.10.2020 17:50
Mathematics, 28.10.2020 17:50
History, 28.10.2020 17:50
Mathematics, 28.10.2020 17:50
Mathematics, 28.10.2020 17:50
Social Studies, 28.10.2020 17:50
Mathematics, 28.10.2020 17:50
Mathematics, 28.10.2020 17:50
Mathematics, 28.10.2020 17:50