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2 years ago

What is the decimal equivalent of 9 11 ?

2 answers:

4 0

You mean 9/11?

Dividing 9 by 11 will give you the correct answer. It's that simple.
<span>9/11 = 0.8181 recurring
</span>
so your answer is 0.8181

slamgirl [31]2 years ago

3 0

Okay, So We Have A Fraction Of 9/11. So, We Have To Remember That A Fraction Bar Is The Same As Division. So, Lets Do The Division. Pull Out That Handy Dandy Calculator Or Brain Of Yours And Do 9/11. So, 9/11 = 0.818181 Repeating Decimal. So, The Decimal Equivalent To 9/11 Is 0.82 Rounded. I Hope This Helps!

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g A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam. We ar

BaLLatris [955]

Answer:

The test statistic is $z = 1.25$

Step-by-step explanation:

We are interested in determining whether or not the proportion of the student who experience anxiety during the exam is significantly more than 80%.

At the null hypothesis, we test if the proportion is 80%, that is:

$H_0: p = 0.8$

At the alternate hypothesis, we test if the proportion is more than 80%, that is:

$H_a: p > 0.8$

The test statistic is:

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

80% is tested at the null hypothesis:

This means that $\mu = 0.8, \sigma = \sqrt{0.2*0.8} = 0.4$

A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam.

This means that $n = 100, X = \frac{85}{100} = 0.85$

The test statistic is

$z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{0.85 - 0.8}{\frac{0.4}{\sqrt{10}}}$

$z = 1.25$

The test statistic is $z = 1.25$

4 0

2 years ago

15 POINTS AND BRAINLY IF RIGHT ANSWER

KonstantinChe [14]

Answer: An equations is a number, a variable, or a combination of numbers and variables and operational symbols. An equation is made up of two expressions connected by an equal sign.

Example Expression: 8x+5y-3x-5

Example Equation: 5x-4=x

Hope this helps a little bit:)

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2 years ago

Read 2 more answers

I need help in Math

never [62]

The answer is C.) y=2x+1 since the slope is going upward, and will match the scatter plot.

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