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3 years ago

What is 1 + 1 Please give a detailed answer and I’ll crown

Mathematics

2 answers:

Ksivusya [100]3 years ago

6 0

Answer:

1+1+2

1/10x10=1

(1/10x10)+(1/10x10)+2

or...

0.5x2=1

(0.5x2)+(0.5x2)=2

hope this helps lol

vladimir1956 [14]3 years ago

5 0

Answer:

Step-by-step explanation:

it is two because + this symbol means adding something to another thing, or combining them to get a number higher than before. (negative or positive) in this case it is two ones. so imagine two circles O O. they are separate now but once a + symbol is put in between them, they have to be added. like this: O+O. if each circle is one, then putting two next to each other, or adding them gets two.

this is a big-time waster lol.

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If we had increased the confidence level, the margin of error also would have increased.

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

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$n = 450, \pi = 0.47$ .

The lower and the upper bound of the interval are given, respectively, by:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.47 - 1.96\sqrt{\frac{0.47(0.53)}{450}} = 0.4239$

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.47 + 1.96\sqrt{\frac{0.47(0.53)}{450}} = 0.5161$

The 95% confidence interval for the proportion of college students who work to pay for tuition and living expenses is: (0.4239, 0.5161).

More can be learned about the z-distribution at brainly.com/question/25890103

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