![subject](/tpl/images/cats/mat.png)
Mathematics, 31.03.2021 03:50 gabby640
The working life of a lightbulb is normally distributed with mean 1.3 years and standard deviation 0.3 year. What is the probability that it will last at least a year?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:00
Which statement best describes the expression 4y ÷ 9? (1 point) 9 divided by 4 times y 9 times y divided by 4 4 times y divided by 9 4 divided by 9 times y
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:40
Multiplying an even number of negative numbers gives an answer that is choose from:
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:00
Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:50
Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265
Answers: 2
You know the right answer?
The working life of a lightbulb is normally distributed with mean 1.3 years and standard deviation 0...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 28.05.2021 01:10
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.05.2021 01:10
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 28.05.2021 01:10
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/en.png)
English, 28.05.2021 01:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.05.2021 01:10
![question](/tpl/images/cats/himiya.png)
Chemistry, 28.05.2021 01:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.05.2021 01:10
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 28.05.2021 01:10