Mathematics

Mathematics, 13.07.2019 06:30, Asantetaedog8934

The mean life of a particular brand of light bulb is 1200 hours. if you know that at about 95% of this brand of bulbs will last between 1100 and 1300 hours, then what is the standard deviation of the light bulbs' life?

answer

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:30, hinacat87

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

Answers: 1

Mathematics, 21.06.2019 21:00, memoryofdale

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)

Answers: 2

Mathematics, 21.06.2019 22:10, halledoll2002

What’s the range cuz i can’t find it?

Answers: 3

Mathematics, 21.06.2019 22:20, shescarol

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

Answers: 2

Do you know the correct answer?

The mean life of a particular brand of light bulb is 1200 hours. if you know that at about 95% of th...

Questions in other subjects:

Konu

Business, 26.03.2020 21:02

Job 243 was recently completed. The following data have been recorded on its job cost sheet: Direct materials $ 55,870 Direct labor-hours 475 labor-hours Direct labor wage rate $ 1...

Konu

Mathematics, 26.03.2020 21:02

A 90% confidence interval for a population mean is (66, 82). The population distribution is approximately normal and the population standard deviation is unknown. This confidence i...

Konu

Mathematics, 26.03.2020 21:02

In the coordinate plane, the point X (3, 1) is translated to the point X'(4, -1). Under the same translation, the points Y(-1, -3) and Z (6, -2) are translated to Y' and Z',...

Konu

Business, 26.03.2020 21:02

On January 1, 2018, Nana Company paid $100,000 for 8,000 shares of Papa Company common stock. The ownership in Papa Company is 10%. Nana Company does not have significant influence...

Konu

Physics, 26.03.2020 21:02

A 7780 ‑kg car is travelling at 30.7 m/s when the driver decides to exit the freeway by going up a ramp. After coasting 404 m along the exit ramp, the car's speed is 13.3 m/s, and...

Konu

History, 26.03.2020 21:02

Which of the following was NOT used for the first time in WW1? a) battleships b) tanks c) poison gas d) airplanes...

Konu

Mathematics, 26.03.2020 21:02

Suppose that a simple random sample of n=5 individuals is obtained from a population that is skewed right with mean mu=43 and standard deviation=5. (a) The shape of the sampl...

Konu

Health, 26.03.2020 21:02

Communication Pre-Test Active Which of the following statements is NOT true for aggressive communicators? A criticize, blame, or attack others B. speak loud...

Konu

Mathematics, 26.03.2020 21:02

Represent the value of 1/2 in 3 different ways....

Konu

Biology, 26.03.2020 21:02

The most common vectors for DNA cloning are bacterial plasmids. Some plasmids are used as 'expression vectors', i. e. the cloned DNA can be expressed as RNA and/or protein inside t...

Other tasks in the category: Mathematics More task