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2 years ago

Sixty percent of 480 is what number?

Mathematics

2 answers:

sergejj [24]2 years ago

6 0

Answer:

288

Step-by-step explanation:

you have to ask your Amazon alexa

vivado [14]2 years ago

3 0

Answer: It’s 288. You can just look it up

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The standard IQ test is designed so that the mean is 100100 and the standard deviation is 1515 for the population of all adults.

Natalija [7]

Answer:

The sample size should be approximately 151.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 100

Population standard deviation, σ = 15

We have to evaluate the sample size, n.

Alpha, α = 0.10

Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64$

$100 \pm 1.64(\frac{15}{\sqrt{n}} ) = (98,102)$

$100 \pm 1.64(\displaystyle\frac{15}{\sqrt{n}} ) = (98,102)\\\\1.64(\frac{15}{\sqrt{n}} ) = 2\\\\n = 151.29 \approx 151$

Thus, the sample size should be approximately 151.

6 0

2 years ago

Answer in the funniest way possible, fre points basically.

Roman55 [17]

Answer:

2 + 2 = 4

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5 0

2 years ago

I need an equation for this please

Degger [83]

Answer:1.5

+ 15

————

2.25r

Step-by-step explanation:

You can try that!

6 0

3 years ago

What is the 30 60 90 rule and the 45 45 90 rule (to do with triangles)

Sphinxa [80]

The 30,60,90 - the hypotenuse is equal to twice the length of the shorter leg , the hypotenuse side =2x , the shortest side =x and the straight side is x square root 3

7 0

2 years ago

Is 4/3y=x a direct variation?

Masja [62]

Answer:

1 yes 2 no 3 no

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers