Answer:
E155
Step-by-step explanation:
The mean of the discrete probability distribution is of 1.28.
<h3>What is the mean of a discrete distribution?</h3>
The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.
Then, considering the given distribution, the mean is given by:
E(X) = 0(0.13) + 1(0.61) + 2(0.15) + 3(0.07) + 4(0.04) = 1.28.
More can be learned about the mean of a discrete probability distribution at brainly.com/question/24855677
Answer:
A) (17 ; 550)
B) $17/item
C) 550
Step-by-step explanation:
First we must calculate the intersection point of the two lines. Since in that point <em>y</em> has the same value in both equations, we can obtain <em>x </em>by equalling the two equations and then using that value for obtaining <em>y</em>:
![5x+465=-6x+652\\5x+6x=652-465\\11x=187\\x=\frac{187}{11}\\x=17](https://tex.z-dn.net/?f=5x%2B465%3D-6x%2B652%5C%5C5x%2B6x%3D652-465%5C%5C11x%3D187%5C%5Cx%3D%5Cfrac%7B187%7D%7B11%7D%5C%5Cx%3D17)
So the value of <em>x</em> in the intersection point is 17. We now use this value with either one of the equations to obtain <em>y</em><em>. </em>Let's use the supply equation:
![y=5*17+465\\y=550](https://tex.z-dn.net/?f=y%3D5%2A17%2B465%5C%5Cy%3D550)
So the intersection point is (17 ; 550)
Supply and demand are in equilibrium when the amount of items on supply are the same as the ones on demand. That is the point were the two lines intersect, which means the selling price is the <em>x</em> coordinate and the amount of items is the <em>y</em> coordinate, so that is a selling price of <em>$17/item</em> with a number of items of <em>550</em>.
Answer:
The answer is "Option d".
Step-by-step explanation:
It involves the use of quantitative templates, diagrams, or summaries in such a given set of experimental data or real-liability for research. This research method is used for gathering, analyzing, assessing, or making judgments.
- The statistics are mostly a summary description and the entire nation is represented in a parameter.
- It is 78 figure is a statistical figure based on a survey of 10,000 people, that's why choice d is correct.