3 years ago

What is 1 over 200 as a percent

1 answer:

6 0

The answer is 0.5

A percentage is over 100.

So rewrite 1/200 with a denominator of 100, then the numerator is the percent.

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Find the minimum sample size needed to estimate the percentage of Democrats who have a sibling. Use a 0.1 margin of error, use a

Brums [2.3K]

Answer:

The minimum sample size is $n =135$

Step-by-step explanation:

From the question we are told that

The confidence interval is $( lower \ limit = \ 0.44,\ \ \ upper \ limit = \ 0.51)$

The margin of error is $E = 0.1$

Generally the sample proportion can be mathematically evaluated as

$\r p = \frac{ upper \ limit + lower \ limit }{2}$

$\r p = \frac{ 0.51 + 0.44}{2}$

$\r p = 0.475$

Given that the confidence level is 98% then the level of significance can be mathematically evaluated as

$\alpha = 100 - 98$

$\alpha = 2\%$

$\alpha =0.02$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table

The value is

$Z_{\frac{\alpha }{2} } = 2.33$

Generally the minimum sample size is evaluated as

$n =[ \frac { Z_{\frac{\alpha }{2} }}{E} ]^2 * \r p (1- \r p )$

$n =[ \frac { 2.33}{0.1} ]^2 * 0.475(1- 0.475 )$

$n =135$

6 0

3 years ago

What place is eight and 46.38

svetoff [14.1K]

Hundreds place!
6 is ones
3 is tens
8 is hundreds

8 0

3 years ago

20 points!!! (PLEASE ANSWER ALL, AND ALL CORRECTLY!!) this test is already late!

bagirrra123 [75]

Answer: im not sure but a)15 B)24 c)zoo in a different city

Step-by-step explanation:

4 0

3 years ago

Danny babysat for 7 hours yesterday. For how many seconds did Danny babysit for yesterday? Show me how you got the answer

Snezhnost [94]

Well, there are 60 minute in an hour and 60 seconds in a minute so we can multiply 7 by 60 and then 60 again to find out answer.
7 times 60=420 times 60=25200
she babysat for 25200 seconds

4 0

3 years ago

What is the value of x un the following equation: <br> -5.5x + 0.56 = -1.64

Ksenya-84 [330]

To solve this, you must subtract .56 from -1.64. Then divide that by -5.5x. So the answer is .4

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3 years ago