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3 years ago

Find the circumference of the circle in terms of it.

Mathematics

1 answer:

Natalka [10]3 years ago

8 0

Answer:

37.6991 cm

Step-by-step explanation:

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Which problem is represented by this inequality? 1 7 x < 14 A) There are 1 7 as many ladybugs as ants on the picnic table. If

Jet001 [13]

Answer:It's A becauseits the only answer that says less than, the others say more than and less than or equal to.

Step-by-step explanation:

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4 years ago

Compute the standard error for sample proportions from a population with proportion p= 0.55 for sample sizes of n=30, n=100 and

Pani-rosa [81]

Given Information:

Population proportion = p = 0.55

Sample size 1 = n₁ = 30

Sample size 2 = n₂ = 100

Sample size 3 = n₃ = 1000

Required Information:

Standard error = σ = ?

Answer:

$\sigma_1 = 0.091$

$\sigma_2 = 0.050$

$\sigma_3 = 0.016$

Step-by-step explanation:

The standard error for sample proportions from a population is given by

$\sigma = \sqrt{\frac{p(1-p)}{n} }$

Where p is the population proportion and n is the sample size.

For sample size n₁ = 30

$\sigma_1 = \sqrt{\frac{p(1-p)}{n_1} }$

$\sigma_1 = \sqrt{\frac{0.55(1-0.55)}{30} }$

$\sigma_1 = 0.091$

For sample size n₂ = 100

$\sigma_2 = \sqrt{\frac{p(1-p)}{n_2} }$

$\sigma_2 = \sqrt{\frac{0.55(1-0.55)}{100} }$

$\sigma_2 = 0.050$

For sample size n₃ = 1000

$\sigma_3 = \sqrt{\frac{p(1-p)}{n_3} }$

$\sigma_3 = \sqrt{\frac{0.55(1-0.55)}{1000} }$

$\sigma_3 = 0.016$

As you can notice, the standard error decreases as the sample size increases.

Therefore, the greater the sample size lesser will be the standard error.

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4 years ago

Pls pls help it's really urgent!!!!

Kobotan [32]

Answer: disregard my previous answer, it was incorrect, looking for right one right now

(you can delete this if you want)

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3 years ago

Keisha is working on a math worksheet with 50 problems. She has completed 20 problems in 25 minutes. If she continues at the sam

Sidana [21]

Set up a proportion.

$\sf\dfrac{20}{25}=\dfrac{50}{x}$

Cross multiply:

$\sf1250=20x$

Divide 20 to both sides:

$\sf~x=62.5$

So it will take 62.5 minutes for her to complete the worksheet.

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3 years ago

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I dont really understand this??

jeyben [28]

Answer:

$x\geq -53$

Step-by-step explanation:

The inequality includes -53.

The interval notation is $\:[-53,\:\infty \:)$

$\{ x \in \mathbb{R}: x \geq -53 \}$

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3 years ago

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Find the circumference of the circle in terms of it.​

Find the circumference of the circle in terms of it.