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max2010maxim [7]

3 years ago

15

Help me with this please

1 answer:

OleMash [197]3 years ago

8 0

Answer:

x=4

Step-by-step explanation:

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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

3 years ago

Find the lateral surface area of the triangular prism.

Aleks [24]

Answer:

is it A?

Step-by-step explanation:

I think it's A because no one has answered!

3 0

3 years ago

HELP ASAP!!!!!!! I NEED THIS SOON!!!

Arte-miy333 [17]

Answer:

Is this a question about the laws of angle of incidence or is it just coordinates

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Follow this link to view Juan's work. Critique Juan's work by justifying correct solutions and by explaining any errors he made

Aleksandr [31]

Answer:

I don't no sorry please bro sorry

4 0

3 years ago

Which number sentence is true?

Alexxx [7]

Answer:

The answer is B

Step-by-step explanation:

Because A is incorrect because the -8.9 is in absolute value which mean it will be an 8.9 which is greater than 5.6

C is Incorrect because - 5.6 is not greater than the absolute value of -8.9 which is 8.9, as you can see is greater than -5.6

D is incorrect because the absolute value of 5.6 is still 5.6 and the absolute value of - 8.9 is 8.9 which is greater that 5.6

<h2><em><u>B</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>correct</u></em><em><u> </u></em><em><u>because</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>absolute</u></em><em><u> </u></em><em><u>value</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>-5.6</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>5.6</u></em><em><u> </u></em><em><u>which</u></em><em><u> </u></em><em><u>makes</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>less</u></em><em><u> </u></em><em><u>than</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>absolute</u></em><em><u> </u></em><em><u>value</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>-8.9</u></em><em><u> </u></em><em><u>because</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>absolute</u></em><em><u> </u></em><em><u>value</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>8.9</u></em><em><u> </u></em><em><u>which</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>greater</u></em><em><u> </u></em><em><u>than</u></em><em><u> </u></em><em><u>5.6</u></em><em><u> </u></em><em><u>.</u></em></h2>

5 0

3 years ago