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3 years ago

8

Again, a little help here? ;w;

2 answers:

miskamm [114]3 years ago

8 0

The answer is A and C

Nat2105 [25]3 years ago

5 0

Answer:

all i know is c

Step-by-step explanation:

You might be interested in

Suppose I have an urn with 9 balls: 4 green, 3 yellow and 2 white ones. I draw a ball from the urn repeatedly with replacement.

Mrrafil [7]

Answer:

$E(X_n)=\frac{2(n-1)}{27}$

$E(y)=\frac{14}{9}$

Step-by-step explanation:

From the question we are told that:

Sample size n=9

Number of Green $g=4$

Number of yellow $y=4$

Number of white $w=4$

Probability of Green Followed by yellow P(GY) ball

$P(GY)=\frac{4}{9}*\frac{3}{9}$

$P(GY)=\frac{4}{27}$

Generally the equations for when n is even is mathematically given by

$Probability of success P(S)=\frac{4}{27}$

$Probability of Failure P(F)=\frac{27-4}{27}$

$Probability of Failure P(F)=\frac{23}{27}$

Therefore

$E(X_n)=\frac{n}{2}*P$

$E(X_n)=\frac{n}{2}*\frac{4}{27}$

$E(X_n)=\frac{2n}{27}$

Generally the equations for when n is odd is mathematically given by

$\frac{n-1}{2}$

$E(X_n)=\frac{n-1}{2}*\frac{4}{27}$

$E(X_n)=\frac{2(n-1)}{27}$

b)

Probability of drawing white ball

$P(w)=\frac{2}{9}$

Therefore

$E(w)=\frac{1}{p}$

$E(w)=\frac{1}{\frac{2}{9}}$

$E(w)=\frac{9}{2}$

Therefore

$E(y)=[E(w)-1]\frac{4}{9}$

$E(y)=[\frac{9}{2}-1]\frac{4}{9}$

$E(y)=\frac{14}{9}$

5 0

2 years ago

Am I correct or not???

pentagon [3]

Yes that is correct.Well done!:D

3 0

2 years ago

Hi. I have been doing really bad at math. I have a "tutor" and I study for hours yet I get F's on all my quizzes. I really need

Damm [24]

Answer:

just practice time and again practice might not make perfect but it surely makes better. relying when your teacher only might not help you must mostly rely on your hard work and also have people at your disposal to help you including the said teacher hope you'll improve

7 0

2 years ago

The vertical change between 2 points.

fredd [130]

Answer:

what does it look like we need that

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A Chinese restaurant offers buffet takeout for $4.99 per pound. How much does your takeout meal cost?

Degger [83]

Answer:

$7.68

Step-by-step explanation:

4.99/0.65 = $7.68

Hope it helps!

4 0

2 years ago