Mathematics, 26.11.2019 01:31 NetherisIsTheQueen
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).
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.
Answers: 1
Mathematics, 21.06.2019 15:30
The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease
Answers: 3
Mathematics, 21.06.2019 17:30
The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest
Answers: 3
Mathematics, 21.06.2019 18:30
Can someone check if i did this correct. it’s number 4 if you’re wondering.
Answers: 1
Mathematics, 21.06.2019 20:00
Describe a situation that you could represent with the inequality x< 17
Answers: 2
Color-blindness is any abnormality of the color vision system that causes a person to see colors dif...
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