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 ().color-blindness is gender-based, with the majority of sufferers being males. roughly 8% of white males have some form of color-blindness, 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).select one answer.10 pointswhich of the following is true regarding the random variables x and y? both x and y can be well-approximated by normal random variables. only x can be well-approximated by a normal random variable. only y can be well-approximated by a normal random variable. neither x nor y can be well-approximated by a normal random variable.