![subject](/tpl/images/cats/mat.png)
Mathematics, 03.04.2020 01:48 gavergan
"Bacteria in a culture can live for an average of two hours with a standard deviation of 15 minutes. How long can we expect at least 75% of the bacteria to live?"
1. What is the mean? x=___ hours = ___ minutes (Convert the number of hours to minutes.)
2. What is the standard deviation? s= ___ minutes
3. According to Chebyshev's Theorem, how many standard deviations contain at least 75% of the data? k= ___
4. We can expect the at least 75% of the bacteria to live between ___
and ___ minutes.
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30
Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:50
What is the solution to the equation below? 3/x-2+6=square root x-2 +8
Answers: 1
![question](/tpl/images/cats/mat.png)
You know the right answer?
"Bacteria in a culture can live for an average of two hours with a standard deviation of 15 minutes....
Questions
![question](/tpl/images/cats/istoriya.png)
History, 20.09.2020 18:01
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 18:01
![question](/tpl/images/cats/en.png)
English, 20.09.2020 18:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 20.09.2020 18:01
![question](/tpl/images/cats/mkx.png)
Arts, 20.09.2020 18:01
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 18:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 18:01