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amid [387]
2 years ago
9

Divide. Write the answer in simplest form. 3=6= 8

id="TexFormula1" title=" \frac{3}{8} \div 6" alt=" \frac{3}{8} \div 6" align="absmiddle" class="latex-formula">
​
Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
7 0
Hope this helps!! If u want me to answer any more questions just ask! Have a nice day!

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Based on a poll conducted by the Centers for Disease Control, 862 of 1013 randomly selected adults said that they always wear se
ivolga24 [154]

The confidence interval is  0.028, 0.872

<h3>Given </h3>

862 of 1013 randomly selected adults  wear seat belts.

The 95% confidence interval for the proportion of adults who always wear seat belts.

<h3>What is confidence interval?</h3>

A Confidence Interval is defined as a range of values we are sure our true value lies within it.

<h3>What is 95% confidence interval?</h3>

A 95% confidence interval is defined as that if we take 100 different samples and compute a 95% confidence interval for each sample, then approximately 95 of the 100 confidence intervals will contain the true mean value.

= 862/1013 = 0.85

At a 95% confidence interval ,the critical value is z_{0.025}  = 1.96

The 95% confidence interval for proportion is

\widehat p +/- z0.025 * sqrt(\widehat p * (1 - \widehat p)/n)

= 0.85 +/- 1.96 * sqrt(0.85 * (1 - 0.85)/1013)

= 0.85 +/- 0.022

= 0.028, 0.872

The sample should use at least 10 successes and 10 failures.

n * \widehat p = 1013 * 0.85 = 861 > 10

n * (1 - \widehat p) = 1013 * 0.15 = 152 > 10

As the sample size is larger, we can use an approximate formula for the standard error.

Learn more on Confidence intervals here:

brainly.com/question/8961482

#SPJ4

3 0
2 years ago
How many vertices does the following shape have?
Nina [5.8K]

Answer:

There is 8 vertices!

Step-by-step explanation:

They are just the points of the cube!

Hope this helps!

8 0
3 years ago
Read 2 more answers
Daisy cut a square out of a sheet of graph paper . The square had an area of 16 square cm. She then trimmed one cm from each sid
Deffense [45]
If the area was 16cm^2 before, then each side was 4 cm long since each side of a square is equal, and the area for a square is the length of the sides squared. The square root of 16 is 4, so that is why the sides were 4 cm. When you make each side 1 cm shorter, they're now all 3 cm. 3^2 is 9, so the new area is 9 square centimeters.
3 0
3 years ago
4+x*100%-41-y/14*9(23/78)*6289-2.987075347=
geniusboy [140]

Answer:

wenus.

Step-by-step explanation:

4 inches. hduruuruthtututuu4u4

8 0
3 years ago
The area of a circle is 16cm2. What is the circle's circumference?
Delicious77 [7]
A=pir^2
c=2pir

a=pir^2=16
pir^2=16
divide both sides by pi or about 3.141592
r^2=5.0929581789406507446042804279205
sqrt both sides
r=2.2567583341910251477923178062431

circumference=2pir
circumference=2pi(2.2567583341910251477923178062431)
c=4.5135166683820502955846356124862pi
about 4.5pi square cm



7 0
3 years ago
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