![subject](/tpl/images/cats/mat.png)
Mathematics, 03.07.2021 17:20 Har13526574
X and Y are independent random variables. X has mean 100 and standard deviation 12. Y has mean 30 and standard deviation 9. What are the mean and standard deviation of (X–Y)?
![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 15:00
In the pendulum formula t=2pi. read the problem on the picture ! ; $; $; ! ; ! ; ! ; )$; ! ; ! ; ! ; $; $; $! ; ! ; ); $; $$
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:40
What is the distance between the points 4,10 and -3,-14 on the coordinate plane
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:30
Runner ran 1 4/5 miles on monday and 6 3/10 on tuesday. how many times her monday’s distance was her tuesdays distance
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00
Three consecutive integers have a sum of 234. what are the three integers
Answers: 2
You know the right answer?
X and Y are independent random variables. X has mean 100 and standard deviation 12. Y has mean 30 an...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 01:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mkx.png)
Arts, 01.05.2021 01:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.05.2021 01:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 01:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 01.05.2021 01:00
![question](/tpl/images/cats/en.png)
English, 01.05.2021 01:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 01:00
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 01.05.2021 01:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 01.05.2021 01:00