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WARRIOR [948]
4 years ago
15

A bag contains two black balls, three white balls, and four red balls. Three balls are drawn at random without replacement. Let

Y1 be the number of black balls drawn and Y2 the number of white balls drawn. a) Find E(Y2|Y1 = y1)
Mathematics
1 answer:
Zolol [24]4 years ago
7 0

Answer:1/3

Step-by-step explanation:

This is an independent event i.e the occurrence of one does not affect the other

Finding E(Y2|Y1) means E(Y2) i.e probability that Y2 is selected if it is E(Y1|Y2), this means probability of drawing Y1.

Since this an independent event,

E(Y2|Y1) =E(Y2)

Since three balls are drawn at random, probability of drawing Y2 will be 3/9 i.e 1/3

Note that the sum total of the balls will be the total outcome.

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Sunny_sXe [5.5K]

Answer:

nope

Step-by-step explanation:

3 0
4 years ago
A)0.76×0.004<br><br>b)0.078÷0.5<br><br>c)0.834+0.79<br><br>d)0.0034-0.0078<br>​
e-lub [12.9K]
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3 0
3 years ago
Please help!
Salsk061 [2.6K]
VK = VY+YK by the segment addition postulate. Basically adding two segments along a straight line forms a longer segment. In this case, VY and YK combine to form VK

Since VK = x and VY = 22, this means...
VK = VY+YK 
x = 22+YK 
x-22 = YK
YK = x-22

-----------------------------------------------------

Notice the arc marks where the point T is located. These markings tell us that the two angles VTY and YTK are congruent angles. Because of this, we can use the angle bisector theorem which says that the ratio of the corresponding sides are congruent.

In short, we can form this ratio
VT/VY = KT/KY
which is the ratio of the side adjacent to the angle, to the side opposite the angle

Plug in the given values and solve for x
VT/VY = KT/KY
77/22 = 87.5/(x-22)
77(x-22) = 22*87.5
77(x-22) = 1925
77x-77*22 = 1925
77x-1694 = 1925
77x = 1925+1694
77x = 3619
x = 3619/77
x = 47

Answer: 47
5 0
3 years ago
Which Quaker belief do you think influenced William Penn’s attitude toward Native Americans? Explain your answer.
Lapatulllka [165]

Answer:

Penn and other Quakers believed that everyone had to seek God in his or her own way.  Penn also thought that religious tolerance – or “liberty of conscience” – would create stronger governments and wealthier societies.  Other English thinkers in the 1600s shared these ideas.  But Penn had the opportunity to act on his beliefs. In Pennsylvania, religious tolerance was the law.

Penn welcomed settlers from all faiths to Pennsylvania.  Each of the other American colonies had established an official church, but Penn did not.  He sought out religious groups suffering in Europe, and invited them to his colony.  He even gave some groups land.  Yet religious tolerance did not mean that colonists of all faiths had equal rights.  Only Christians could vote or hold political office.  But all settlers could take part in the social and economic life of Pennsylvania.

Penn’s belief that “Religion and Policy…are two distinct things, have two different ends, and may be fully prosecuted without respect on to the other” took hold and became one of America’s most important ideals.

<u>I hope this is enough or u can get ur answer out of it :)</u>

8 0
3 years ago
Can anyone help me ASAP
Phoenix [80]
43% chance because 43% of them are yellow!
6 0
3 years ago
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