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3 years ago

13

Change each fraction or decimal to a percent, 0.63

1 answer:

AleksandrR [38]3 years ago

5 0

To change this, all you have to do is multiply by 100 in which will get you 63/100. In percent form, your answer will be 63%.

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Last month, you joined an online strategy game. When you joined, there were 90 members. Since then, the number of members has in

Lunna [17]

$\huge\boxed{99}$

First, find out how much $10%$ of $90$ is.

$90*10%\ =\ 90*0.1\ =\ 9$

Now, just add that to $90$ .

$90+9=\boxed{99}$

There are $99$ members now.

3 0

3 years ago

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The difference between teenage female and male depression rates estimated from two samples is 0.07. The estimated standard error

KATRIN_1 [288]

Answer:

The 95% confidence interval is $0.0112 < \mu_m - \mu_f < 0.1288$

Step-by-step explanation:

From the question we are told that

The sample mean difference is $\= x_m - \= x_f = 0.07$

The standard error is SE = 0.03

Given that the confidence interval is 95% then the level of significance is mathematically evaluated as

$\alpha = 100 - 95$

$\alpha = 5\%$

$\alpha =0.05$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table, the value is $Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{ \alpha }{2} } * SE$

substituting values

$E = 1.96 * 0.03$

$E = 0.0588$

The 95% confidence interval is mathematically represented as

$(\= x_m - \= x_f ) - E < \mu_m - \mu_f$

substituting values

$0.07 - 0.0588 < \mu_m - \mu_f$

$0.0112 < \mu_m - \mu_f < 0.1288$

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3 years ago

For 10 days in a row Fiona and Gary timed how long they brushed their teeth

Yuri [45]

(X (Fiona) + Y (Gary))/20 (10 days for each of them so it’s 20)

(x+y)/6

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4 years ago

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A company the created a basic knowledge exam claims that more than 70% of adults should pass the test. In a recent study, 584 ou

drek231 [11]

Answer: -2.10

Step-by-step explanation:

just took the test

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3 years ago

So, I'm in 9th grade. We are learning slope, but I don't understand. Does anyone have a simple method that they could explain to

Mazyrski [523]

I always used rise over run. which is when you count up the y axis for run and count over on the x axis for the run. then take your rise over run and there is your slope.

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3 years ago

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