![subject](/tpl/images/cats/mat.png)
Mathematics, 19.05.2020 16:14 alexandroperez13
The following two-way frequency table shows information collected from a survey of teenagers regarding how they spend their screen time and whether they wear glasses.
Glasses vs.
Screen Time Uses the
Internet Watches
TV Total
Wears
Glasses 4 8 12
Does Not
Wear Glasses 3 5 8
Total 7 13 20
Are "Does Not Wear Glasses" and "Uses the Internet" independent, and why?
Select the option that correctly answers both questions.
Yes, because P(Does Not Wear Glasses)⋅P(Uses the Internet)=0.40⋅0.35=0.14; P(Does Not Wear Glasses∩Uses the Internet)=0.15; and 0.14≈0.15.
No, because P(Does Not Wear Glasses)⋅P(Uses the Internet)=0.40⋅0.25=0.05; P(Does Not Wear Glasses∩Uses the Internet)=0.15; and 0.05≠0.15.
Yes, because P(Does Not Wear Glasses)⋅P(Uses the Internet)=0.20⋅0.60=0.12; P(Does Not Wear Glasses∩Uses the Internet)=0.15; and 0.12≠0.15.
No, because P(Does Not Wear Glasses)⋅P(Uses the Internet)=0.15⋅0.25=0.0375; P(Does Not Wear Glasses∩Uses the Internet)=0.15; and 0.0375≠0.15.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 13:00
Which expression is equivalent to the expression below? (6c^2 + 3c) / (-4c + 2) / (2c + 1) / (4c - 1)a. 3c(2c-1) / (2c + 1)b. -3c(2c-1)^2 / (2c + 1)^2c. 3cd. -3c(just took the test its d. -3c)
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Thelime contains the point(-3,0) and parallel x-3y=3( show all work)
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:10
Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:00
There is an entrance to the computer room at point e which lies on ab and is 5 feet from point a. plot point e on the coordinate plane. find the distance from the entrance at point e to the printer at point e
Answers: 1
You know the right answer?
The following two-way frequency table shows information collected from a survey of teenagers regardi...
Questions
![question](/tpl/images/cats/es.png)
Spanish, 07.05.2021 23:20
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 07.05.2021 23:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.05.2021 23:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.05.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 07.05.2021 23:20
![question](/tpl/images/cats/en.png)
English, 07.05.2021 23:20
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/istoriya.png)
History, 07.05.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 07.05.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 07.05.2021 23:20
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.05.2021 23:20
![question](/tpl/images/cats/mat.png)
Mathematics, 07.05.2021 23:20