1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sedbober [7]
3 years ago
6

Color-blindness is any abnormality of the color vision system that causes a person to see colors differently than most people, o

r 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 about the random variables X, Y, and Z? X is binomial with n = 20 and p = .08. Y is binomial with n = 40 and p = .01. Z is not binomial. All of the above are true. Only (A) and (B) are true.
Mathematics
1 answer:
creativ13 [48]3 years ago
7 0

Answer: c) All of the above

Step-by-step explanation:

a) X=the number of color-blind males of the randomly chosen 20 individuals

Thus, X is binomial with n = 20 and p = 0.08.

Y represents the number of color-blind females of the randomly chosen 40 individuals

Thus, Y is also binomial with n = 40 and p = 0.01.

b) However, Z represents the total number of color-blind  which is 60. The probability of being color-blind is not equal among all individuals as it is for X (0.08) and Y (0.09). Thus, Z is not binomial.

In conclusion both a and b are correct, which gives the correct answer number c) all of the above.

You might be interested in
Three coins are tossed. Each coin has a Head and a Tail. Find the probability of getting three tails. Write answers as a simplif
Ket [755]

Your answer would be 1/8.

The probability for getting a tail one time would be 1/2 because there are only 2 sides of a coin. Since tossing one coin doesn't affect the outcome of tossing the other coins, the probability for getting a tail on all of the coins is 1/2 each. We want this to happen 3 times, so the answer would be 1/2 × 1/2 × 1/2 = 1/8.

I hope this helps!

3 0
3 years ago
Read 2 more answers
What is the coefficient and degree of 6v^7
Dmitriy789 [7]
I believe v is your coefficient and the degree is 7
8 0
3 years ago
Vhat is the ninth term of the geometric sequence 3,9, 27, ... ?
ExtremeBDS [4]
I think 36 but not sure
3 0
3 years ago
The radius of the Moon is 1700 km, and the radius of the Earth is 6350 km. A scale model of the Earth and the Moon is made. In t
Reil [10]

Answer:

1) 12.7 cm

2) 8580.24 cm³

Step-by-step explanation:

given,

Radius of moon(Rm) = 1700 Km              Radius of Earth(Re) = 6350 km

Model radius of Moon(Mm) = 3.4 cm        

2) Volume of earth model =\dfrac{(R_e)^3}{(R_m)^3}\times \dfrac{4}{3}\pi (M_m)^3

                                       = \dfrac{(6350)^3}{(1700)^3}\times \dfrac{4}{3}\pi (3.4)^3

                                       = 8580.24 cm³

1) radius of earth = \dfrac{R_e}{R_m}\times M_m

                        =  \dfrac{6350}{1700}\times 3.4

                        = 12.7 cm

3 0
3 years ago
5. Which of the following sets of fractions is arranged in order from LEAST to GREATEST?
SCORPION-xisa [38]

Answer:

\{\frac{1}{8},\frac{1}{4},\frac{1}{2}\}

Step-by-step explanation:

Required

Which is ordered in ascending order

To do this, it is best to convert the fractions to decimal and then make comparison.

From the options, only (b) is ordered in ascending order and the proof is as follows.

\{\frac{1}{8},\frac{1}{4},\frac{1}{2}\}

Convert to decimals

\{0.125, 0.25, 0.5\}

By comparison:

0.125< 0.25< 0.5

Hence, (b) is ordered from least to greatest

3 0
3 years ago
Other questions:
  • Expand the expression and combine like terms:<br> 20(−1.5r+0.75)
    11·2 answers
  • Simplified form of the expression (x^3+3x^2+6)-(9x^2-5x+7)
    12·1 answer
  • Does Meteo’s data show a positive association or a negative associate? Explain how you know
    5·1 answer
  • Polo writes a 3 digit number.<br> it has more than 5 ones.<br> it has fewer than 3 tens
    5·2 answers
  • Which pair of angles must be supplementary <br>1 and 5 <br>5 and 3 <br>4 and 5 <br>4 and 1​
    13·1 answer
  • What is the slope ????
    11·2 answers
  • Which statement about a trapezoid is always true?
    8·1 answer
  • Whats 753×5648÷-4519
    14·2 answers
  • Helpppppp fastttt ASAP
    8·1 answer
  • Sean tried to drink as fast as he could. He drank the slushy at a constant rate. There were originally 275 milliliters of slushy
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!