A fast-food restaurant operates both a drive- through facility and a walk-in facility. On a randomly selected day, let X and Y , respectively, be the propor- tions of the time that the drive-through and walk-in facilities are in use, and suppose that the joint density function of these random variables is f(x, y)= 32 (x+2y), for 0≤x≤10≤x≤1, 0≤y≤1,0≤y≤1,$$ f(x, y)=0, elsewhere. (a) Find the marginal density of X.
(b) Find the marginal density of } Y.
(c) Find the probability that the drive-through facility is busy less than one-half of the time.

Explanation:

Cuál es la relación entre la ecología y la geografía?

¿Cuál es la relación entre ecología y ética?

Ayúdame es tarea que debo entrega

1. what is the relationship between the shape of an enzyme and the reactions they catalyze?

2. how does an enzyme inhibitor work?

separate your answers so i dont get confused : )

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.