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blsea [12.9K]
1 year ago
8

A die is rolled and a coin is flipped simultaneously. the number rolled on the die and whether the coin lands heads or tails is

recorded. how many outcomes are in the sample space? 8 6 10 12
Mathematics
1 answer:
bulgar [2K]1 year ago
4 0

Answer: 12

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago
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You are interested in estimating the the mean weight of the local adult population of female white-tailed deer (doe). From past
alisha [4.7K]

Answer:

n=(\frac{2.33(19)}{7})^2 =39.996 \approx 40

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean  

\mu population mean

\sigma=19 represent the assumed population standard deviation

n represent the sample size (variable of interest)  

Confidence =0.98 or 98%

Me=0.07 represent the margin of error for this case

Solution to the problem

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}  (1)  

And on this case we have that ME =7 and we are interested in order to find the value of n, if we solve n from equation (1) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (2)

The critical value for 98% of confidence interval now can be founded using the normal distribution. And in excel we can use this formla to find it:"=-NORM.INV(0.01,0,1)", and we got z_{\alpha/2}=2.33, replacing into formula (2) we got:

n=(\frac{2.33(19)}{7})^2 =39.996 \approx 40

So the answer for this case would be n=40 rounded up to the nearest integer

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3 years ago
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Does it pass through point 0,27 or is it 2,7?  can you please confirm the first point?
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x + y = 16 
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16 = 4y
y = 4 
2. Now substitute y into equation 1 
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x = 12 
Therefore, x = 12, y = 4
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3 years ago
Whats is -24 plus positive 8
Alina [70]
The answer is -24+8= -16
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