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2 years ago

6.4x1.2= IN DISTRIBUTIVE PROPERTY

Mathematics

1 answer:

Tpy6a [65]2 years ago

8 0

0.2(32+6)

0.2 times 32 is 6.4

0.2 times 6 is is 1.2

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(x,5), (-3,6); slope = -1

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Answer:

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3 years ago

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creativ13 [48]

155 - 2⁷ = 27 =3³
155 - 2⁷ = 3³
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3 years ago

(a) Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the prop

zalisa [80]

Answer:

(a) The sample sizes are 6787.

(b) The sample sizes are 6666.

Step-by-step explanation:

(a)

The information provided is:

Confidence level = 98%

MOE = 0.02

n₁ = n₂ = n

$\hat p_{1} = \hat p_{2} = \hat p = 0.50\ (\text{Assume})$

Compute the sample sizes as follows:

$MOE=z_{\alpha/2}\times\sqrt{\frac{2\times\hat p(1-\hat p)}{n}$

$n=\frac{2\times\hat p(1-\hat p)\times (z_{\alpha/2})^{2}}{MOE^{2}}$

$=\frac{2\times0.50(1-0.50)\times (2.33)^{2}}{0.02^{2}}\\\\=6786.125\\\\\approx 6787$

Thus, the sample sizes are 6787.

(b)

Now it is provided that:

$\hat p_{1}=0.45\\\hat p_{2}=0.58$

Compute the sample size as follows:

$MOE=z_{\alpha/2}\times\sqrt{\frac{\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})}{n}$

$n=\frac{(z_{\alpha/2})^{2}\times [\hat p_{1}(1-\hat p_{1})+\hat p_{2}(1-\hat p_{2})]}{MOE^{2}}$

$=\frac{2.33^{2}\times [0.45(1-0.45)+0.58(1-0.58)]}{0.02^{2}}\\\\=6665.331975\\\\\approx 6666$

Thus, the sample sizes are 6666.

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3 years ago

Wing

lesantik [10]

I honestly don’t understand

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3 years ago

What is the right order of coefficients in the following equation?

Neporo4naja [7]

Answer:

Last option?

Step-by-step explanation:

ax+by=c

4x+6y=60

a=4

b=6

c=60

6 0

3 years ago

Read 2 more answers