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yarga [219]
2 years ago
14

Is an integer multiplied by an integer is an integer always, sometimes, or never

Mathematics
2 answers:
vladimir2022 [97]2 years ago
8 0
An integer multiplied by an integer is always an integer! I had to memorize this for school and it was hard to memorize!
lorasvet [3.4K]2 years ago
5 0
Always is the correct answer for this question.
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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

6 0
2 years ago
Convert 192 cups to gallons. Enter your answers in the boxes. There are cups in 1 gallon. Therefore, 192 cups is equal to gallon
ludmilkaskok [199]

The answer is 12 because there are 16 cups in 1 gallon. 192/16 is 12! Hope this helps! :)

8 0
3 years ago
The number of calories burned while jogging varies directly with the number of minutes spent jogging.
seropon [69]

Answer:

350.5

Step-by-step explanation:

3 0
2 years ago
How many individual squares does a standard chess board have?
Nostrana [21]
There is two hundred and four (204) on a standard chessboard.
6 0
2 years ago
Yd it in<br>8 10 15<br>+2 3 5​
erik [133]

Step-by-step explanation:

I don't exactly know what you're trying to say, but I'm guessing it's an addition question, so...

8 10 15

+2 3 5

10 13 20

5 0
3 years ago
Read 2 more answers
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