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2 years ago

Which of the following is not a diameter?SVRU WT

Mathematics

2 answers:

iVinArrow [24]2 years ago

8 0

The center of the circle is point A
the diameter would be a line with 2 points that cross through point A

the line with points WT cross through pint which is not at the center (Point A)
so WT would not be a diameter.

snow_tiger [21]2 years ago

7 0

WT
It does not perfectly cut the circle in half.

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Of the population of all fruit flies we wish to give a 90% confidence interval for the fraction which possess a gene which gives

maks197457 [2]

Answer:

The margin of error for the 90% confidence interval is of 0.038.

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 level of $1-\alpha$ , 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 $1 - \frac{\alpha}{2}$ .

The margin of error is:

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

To this end we have obtained a random sample of 400 fruit flies. We find that 280 of the flies in the sample possess the gene.

This means that $n = 400, \pi = \frac{280}{400} = 0.7$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

Give the margin of error for the 90% confidence interval.

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

$M = 1.645\sqrt{\frac{0.7*0.3}{400}}$

$M = 0.038$

The margin of error for the 90% confidence interval is of 0.038.

8 0

3 years ago

Greatest to least 1/3 1/2 3/4

schepotkina [342]

The answer will be 3/4, 1/2, and 1/3.
The bigger the fraction the smaller it is.
So 3/4 would be first .
The smaller the fraction the bigger it is.
So 1/3 would be last.
So that leaves you with 1/2 so that one would be in the middle of the set.
So the answer would be...:3/4, 1/2, and 1/3.
Hope that helped.

4 0

3 years ago

Please help I will give you brainliest put the right answer.

sladkih [1.3K]

Answer:

The answer is 104

Step-by-step explanation:

I’m guessing the shape is a triangle so if you have to angels you add them up and minus then from 180 what you get is your missing angle.

3 0

3 years ago

A student wanted to find the sum of all the even numbers from 1 to 100. He said:The sum of all the even numbers from 1 to 100 is

hram777 [196]