Mathematics, 18.10.2019 19:30 monster5368
The lifetimes of a certain type of light bulbs follow a normal distribution. if approximately 2.5% of the bulbs have lives exceeding 445 hours, and approximately 16% have lives exceeding 393 hours, what are the mean and standard deviation of the lifetimes of this particular type of light bulbs? round your answer to the nearest integer. mean = hours tries 0/5 standard deviation = hours
Answers: 3
Mathematics, 21.06.2019 13:30
David bought a poster for an art project. the poster is 2.7 feet wide and 3.9 feet tall. what is the area of the poster?
Answers: 2
Mathematics, 21.06.2019 16:30
You are updating your garage and the only thing left to paint is your garage day. you're only going to paint the slide that faces the street. the garage door is 9 fert 8inches tall and 120 inches wide. you need to know the surface area of the side of the garage door to determine how much paint to buy. the hardware store sells paint by how much covers a square foot. what is the surface area you should report to the hardware store what is the answer
Answers: 3
Mathematics, 21.06.2019 19:00
Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?
Answers: 1
The lifetimes of a certain type of light bulbs follow a normal distribution. if approximately 2.5% o...
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