![subject](/tpl/images/cats/mat.png)
Mathematics, 18.02.2020 05:54 chycooper101
Color-blindness is any abnormality of the color vision system that causes a person to see colors differently than most people, or to have difficulty distinguishing among certain colors (www. visionrx). Color-blindness is gender-based, with the majority of sufferers being males. Roughly 8% of white males have some form of colorblindness, while the incidence among white females is only 1%. A random sample of 20 white males and 40 white females was chosen. Let X be the number of males (out of the 20) who are color-blind. Let Y be the number of females (out of the 40) who are color-blind. Let Z be the total number of color-blind individuals in the sample (males and females together).Which of the following is true regarding the random variables X and Y?
A) Both X and Y can be well approximated by normal random variables.
B) Only X can be well approximated by a normal random variable.
C) Only Y can be well approximated by a normal random variable.
D) Neither X nor Y can be well approximated by a normal random variable.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30, kamiyaharris1
How to use order of operation in 20 divide by 4 multiply 5 = 1
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:00, jinxjungkook
Two florida panthers were weighed. one weighs 6x+21 pounds and the two together weigh 14x+11 pounds how much does he other panther weigh alone
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:30, dakotaadkins20
Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.
Answers: 3
You know the right answer?
Color-blindness is any abnormality of the color vision system that causes a person to see colors dif...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 08.09.2021 19:10
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/biologiya.png)
Biology, 08.09.2021 19:10
![Konu](/tpl/images/cats/mat.png)
Mathematics, 08.09.2021 19:10
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 08.09.2021 19:10
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/geografiya.png)
Geography, 08.09.2021 19:10
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 08.09.2021 19:10