Answer:
Childless marriages experience a decline in marital satisfaction over time as well
Explanation:
It can be said that a fact that provides evidence that it is not simply having children that causes this decline is simply that Childless marriages experience a decline in marital satisfaction over time as well. It has also been proven that in the United States alone 66 percent of couples who get a divorce are childless compared to the other 40 percent who have kids. Therefore proving that it is not just couples with children who experience a decline in marital satisfaction and that there are other factors that come into play when analyzing this term.
Answer: 0.7941
Explanation:
Given : Suppose a study finds that the wing lengths of houseflies are normally distributed with mean : ![\mu=4.55\text{ mm}](https://tex.z-dn.net/?f=%5Cmu%3D4.55%5Ctext%7B%20mm%7D)
![\sigma=0.392\text{ mm}](https://tex.z-dn.net/?f=%5Csigma%3D0.392%5Ctext%7B%20mm%7D)
Let X be the random variable that represents the wing lengths of a randomly selected housefly.
Z-score : ![z=\dfrac{x-\mu}{\sigma}](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7Bx-%5Cmu%7D%7B%5Csigma%7D)
For x = 4 mm
![z=\dfrac{4-4.55}{0.392}\approx-1.40](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7B4-4.55%7D%7B0.392%7D%5Capprox-1.40)
For x = 5 mm
![z=\dfrac{5-4.55}{0.392}\approx1.15](https://tex.z-dn.net/?f=z%3D%5Cdfrac%7B5-4.55%7D%7B0.392%7D%5Capprox1.15)
Now, the probability that a randomly selected housefly has a wing length between 4mm and 5mm is given by :-
![P(4](https://tex.z-dn.net/?f=P%284%3CX%3C5%29%3DP%28-1.4%3Cz%3C1.15%29%5C%5C%5C%5CP%281.15%29-P%28-1.4%29%3D0.8749281-0.0807567%5C%5C%5C%5C%3D0.7941714%5Capprox0.7941)
Hence, the probability that a randomly selected housefly has a wing length between 4mm and 5mm is 0.7941 .
Answer:
Option A and C correct.
Explanation:
Both options are partially correct. The final cycle of a main-sequence star depends greatly on its mass when the hydrogen ran out.
For this case, let's take our sun for example. In billion of years, after the hydrogen is depleted, gravity will take over and start compressing the star, increasing the temperature to levels where the core can now fuse helium into carbon, this process will heat the star again, and the outer layers of hydrogen that remained during the main sequence, will be hot enough to reignite the fusion.
The sun will produce several times more energy than when it was in the main-sequence, and it will continue to expand, it will shallow mercury, venus, the earth itself and perhaps mars until it finally burns the remaining hydrogen. When there is no more fuel to power up the star, it will start to collapse itself, and shrink until it becomes a white dwarf, the last phase of the star.
The material of larger mass stars is burst out in massive explosions known as supernovas.
<span>the process that requires separate plumbing is : C. grey water use
Grey water refer to the clean waste of bath, sinks, and washing machine.
If we do not separated, it could mixed out with the water that we use for our consumption and will compromise the sanitary</span>