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aliina [53]
3 years ago
5

which of the following is the most accurate statement about statistics? A.in statistics, we use the true mean of a population to

estimate the mean of a random sample of that population. B.in statistics, we use the mean from a random sample of a population to estimate the true mean of the population. C. in statistics, the value of the mean from a random sample is the same as the true mean of the population. D. in statistics, the value of the mean from a random sample is unrelated to the true mean of the population.
Mathematics
2 answers:
Damm [24]3 years ago
7 0
B....it makes the most sense, and the concepts are right. Is this your math homework from school? Just curious...
Elenna [48]3 years ago
5 0

Answer - B

In statistics, we try to find true mean value from finding mean of sample value

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-12°F+ -23°F please don't let me down
coldgirl [10]

Plus a negative value becomes subtraction:

-12 + -23 = -12 -23 = -35

3 0
3 years ago
Match each description when z = 9 + 3i. 1. Real part of z 2. Imaginary part of z 3. Complex conjugate of z 4. 3i - z 5. z - 9 6.
sergey [27]
1)\quad \Re(9+3i)=9\qquad\text{F}\\\\
2)\quad \Im(9+3i)=3\qquad\text{E}\\\\
3)\quad \overline{(9+3i)}=9-3i\qquad\text{D}\\\\
4)\quad 3i-(9+3i)=3i-9-3i=-9\qquad\text{A}\\\\
5)\quad 9+3i-9=3i\qquad\text{B}\\\\
6)\quad 9-(9+3i)=9-9-3i=-3i\qquad\text{C}\\\\
5 0
3 years ago
I have 4 sides that are the same length but no right angles
Marysya12 [62]

Answer:

Its a rhombus

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
I NEEDZ HELPZZZZZZZZ!!!!<br><br><br>btw i didnt mean to click d)20..
joja [24]
The slope is 0 or answer B.)
8 0
3 years ago
Solve for x &amp; y <br><br> plsssss, sorry.
andriy [413]

Answer:

\huge\boxed{x=29;\ y=51}

Step-by-step explanation:

This is Isosceles triangle (look at the picture).

We know:

All triangles have internal angles that add up to 180°

Therefore:

(x-2)+(x-2)+(4x+10)=180

combine like terms:

(x+x+4x)+(-2-2+10)=180\\\\6x+6=180\qquad|\text{subtract 6 from both sides}\\\\6x=174\qquad|\text{divide both sides by 6}\\\\x=29

(x - 2)° and 3y° are supplementary angle (Two Angles are Supplementary when they add up to 180°).

Therefore:

3y+(x-2)=180

substitute x = 29 and solve for y:

3y+(29-2)=180\\\\3y+27=180\qquad|\text{subtract 27 from both sides}\\\\3y=153\qquad|\text{divide both sides by 3}\\\\y=51

7 0
2 years ago
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