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drek231 [11]
3 years ago
15

Roger completed a probability experiment with a coin. He flipped the coin 32 times, and it landed on tails eight times. He looke

d at the results of his experiment to determine the ratio of heads outcomes to tails outcomes.
The ratio of heads to tails in simplified form is _ to _
can somebody help me plz :(
Mathematics
2 answers:
pav-90 [236]3 years ago
8 0

1 to 3

Since you know that he landed on tails 8 out of 32 times, he must have flipped heads for the flips he did not flip tails. So, subtract 32 minus 8, which equals 24, and your answer is 8 to 24. Simplify this like you would with a fraction; the greatest common factor is 8 so divide the "numerator" and the "denominator" by 8. Therefore your final answer is 1 to 3.

pav-90 [236]3 years ago
7 0

Answer:3:1

Step-by-step explanation:

Total number of times he flipped the coin =32 times

Out of the 32 times, the outcome of tails is 8 times

The outcome of heads will be

Total times- Tails outcome

32-8

=24 times

Tails outcome= 8 times

Heads outcome= 24 times

Ratio of heads to tails is

Total heads outcome/total tails outcome

=24/8

=3/1

Therefore ratio of heads to tails is 3:1

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Vlad the Impaler promotes many of his soldiers into generals (don't ask what happened to the past generals). Haley thinks the pr
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Using the formula for the margin of error, it is found that Haley should sample 12,724 soldiers.

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

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

In which

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The margin of error is of:

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

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94% confidence level

So \alpha = 0.94, z is the value of Z that has a p-value of \frac{1+0.94}{2} = 0.97, so z = 1.88.  

Margin of error of <u>less than 0.008</u> is wanted, hence, we have to find n when M = 0.008.

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

0.008 = 1.88\sqrt{\frac{0.64(0.36)}{n}}

0.008\sqrt{n} = 1.88\sqrt{0.64(0.36)}

\sqrt{n} = \frac{1.88\sqrt{0.64(0.36)}}{0.008}

(\sqrt{n})^2 = (\frac{1.88\sqrt{0.64(0.36)}}{0.008})^2

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A similar problem is given at brainly.com/question/25404151

4 0
3 years ago
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24*6

144



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Answer:

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Step-by-step explanation:

consider the following image

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