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Lena [83]
3 years ago
9

What are the three methods used to identify sample spaces?

Mathematics
2 answers:
crimeas [40]3 years ago
6 0

In table, organized list and a tree diagram

Ira Lisetskai [31]3 years ago
5 0
I'm not sure what you're asking but i think it can be this 

Numbers
Colors
Probability

Hope this helps :)

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From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-ciga
jasenka [17]

Answer:

The 90% confidence interval is (0.1897, 0.2285).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence interval 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

Z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}

For this problem, we have that:

From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-cigarette) in the past week. This means that n = 1186, \pi = \frac{248}{1186} = 0.2091

Construct a 90% confidence interval to estimate the population proportion of Americans age 18-29 who vaped in the past week.

So \alpha = 0.10 , z is the value of Z that has a pvalue of 1 - \frac{0.10}{2} = 0.95, so z = 1.645.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 - 1.645\sqrt{\frac{0.2091*0.7909}{1186}} = 0.1897

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 + 1.645\sqrt{\frac{0.2091*0.7909}= 0.2285

The 90% confidence interval is (0.1897, 0.2285).

3 0
3 years ago
Can you please help
Free_Kalibri [48]

Answer:

The answer to the question provided is

\frac{9}{5}

Step-by-step explanation:

T

4 0
3 years ago
Solve the following equation for x.<br> 12x - 8 = 40<br><br> A. 4<br> B. 5<br> C. 6<br> D. 3
Anon25 [30]

Add 8 to both sides

12x = 40 + 8

Simplify 40 + 8 to 48

12x = 48

Divide both sides by 12

x = 48/12

Simplify 48/12 to 4

<em>x = 4</em>

<u>Answer: A. 4</u>

7 0
3 years ago
Read 2 more answers
Okay now using distributive property write 2(4x-9) without parenthesis
riadik2000 [5.3K]
2(4x - 9) = 
2 * 4x - 2 * 9 = 
8x - 18

Hope this helps!!
~Kiwi


6 0
3 years ago
Tiffany practices her guitar for 3 Over 4 hour each day. How many hours does she practice in 7 days
miv72 [106K]

Answer:

5 1/4

Step-by-step explanation:

4 0
2 years ago
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