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Otrada [13]
4 years ago
8

There are 2,000 eligible voters in a precinct. 500 of the voters are selected at random and asked to indicate whether they plann

ed to vote for the democratic incumbent or the republican challenger. of the 500 surveyed, 350 said they were going to vote for the democratic incumbent. using the 0.99 confidence coefficient, what are the confidence limits for the proportion that plan to vote for the democratic incumbent?
Mathematics
1 answer:
STatiana [176]4 years ago
7 0
<span>i think the answer is .0.647 and 0.753 </span>
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iren [92.7K]

Let , coordinate of points are P( h,k ).

Also , k = 3h + 1

Distance of P from origin :

d=\sqrt{h^2+k^2}

Distance of P from ( -3, 4 ) :

d=\sqrt{(h+3)^2+(k-4)^2}

Now , these distance are equal :

h^2+(3h+1)^2=(h+3)^2+(3h+1-4)^2\\\\h^2+(3h+1)^2=(h+3)^2+(3h-3)^2

Solving above equation , we get :

P=(\dfrac{16}{21},\dfrac{23}{7})

Hence , this is the required solution.

6 0
3 years ago
Find the slope of the line passing through the points (6, -6) and (4, -4)
djyliett [7]

To find the slope (m), use the slope formula:

m=\frac{y_2-y_1}{x_2-x_1}         and plug in the two points

(4, -4) = (x₁, y₁)

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[lines usually go from left to right, so the point furthest to the left is the 1st point]

m=\frac{y_2-y_1}{x_2-x_1}

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3 years ago
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maria [59]
The total number of dancers in the school is 150.
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4 years ago
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Cloud [144]

Answer:

16.92

Step-by-step explanation:

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<em>Hope that helps!</em>

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Dafna1 [17]
1)-9/5C=-F+32
2)9/5C=F-32
3)9C=5(F-32)
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4 0
3 years ago
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