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2 years ago

15

A politician wants to estimate the proportion of constituents favouring a controversial piece of proposed legislation. Suppose t

hat a 99% confidence interval that extends at most 0.05 on each side of the sample proportion is required. How many sample observations are needed?

1 answer:

diamong [38]2 years ago

4 0

Answer:

I pressed this by an accident

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A waffle recipe calls for 2 and1/4 cups of flour. If Chun wants to make1 1/2 times the recipe, how much flour does he need?

balandron [24]

2 1/4 x 1 1/2 = 3.375 cups of flour

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3 years ago

at the beginning of school, we had 40 algebra books. We increased our supply by 65%. how many algebra books does the school have

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Find the Taylor series for f(x) centered at the given value of a. [Assume that f has a power series expansion. Do not show that

kherson [118]

Answer:

The answer is

$f(x) = {\displaystyle 8 + \frac{-28}{1}(x+2)+\frac{-36}{2!}(x+2)^2 + \frac{-18}{3!}(x+2)^2 }$

Step-by-step explanation:

Remember that Taylor says that

$f(x) = {\displaystyle \sum\limits_{k=0}^{\infty} \frac{f^{(k)}(a) }{k!}(x-a)^k }$

For this case

$f^{(0)} (-2) = 8(-2)-3(-2)^3 = 8\\f^{(1)} (-2) = 8-3(3)(-2)^2 = -28\\f^{(2)} (-2) = -3(3)2(-2) = -36\\f^{(2)} (-2) = -3(3)2 = -18$

$f(x) = {\displaystyle 8 + \frac{-28}{1}(x+2)+\frac{-36}{2!}(x+2)^2 + \frac{-18}{3!}(x+2)^2 }$

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3 years ago

Can any one answer this correctly?

MakcuM [25]

Answer:

A

Step-by-step explanation:

The Y-intercept is -3.

The gradient is -3/4 since it goes down 3 every 4 tiles.

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1 year ago

Read 2 more answers

If A = (-2,3), what is ry-axis o D3(A)?<br> A (-6,-9)<br> B (9,-6)<br> C (5,6)<br> D (6,9)

ryzh [129]

C hope it helps you

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3 years ago