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SSSSS [86.1K]
3 years ago
13

Why is a voluntary response sample always valid

Mathematics
2 answers:
stiks02 [169]3 years ago
4 0
Cringe to fingernails on a chalkboard
Kobotan [32]3 years ago
4 0
It would be like a radio show talk host who asks the audience about controversial topics such as abortion, taxes, gun control, etc. Basically it is bad because the radio host would be asking them biased questions that really did not need to be asked in the first place because there are so many different opinions in the world. 
Hope this helped!
Have a nice day!
You might be interested in
Simplify the expression 8x-2x+12x-3
aev [14]

Answer:

18x - 3

Step-by-step explanation:

Add all the X values

8x + -2x + 12x = 18x

Put the final numbers on the side.

-3

18x-3

7 0
3 years ago
I need help with this​
Arturiano [62]

Answer:

With what? i dont see the picture

Step-by-step explanation:

5 0
3 years ago
A candy store sells chocolate for $7.91 per pound. The piece you want to buy is .17 lbs. how much will it cost
Paul [167]

Answer:

1 piece will cost 2 cents

Step-by-step explanation:

If you divide 7.91 by 0.17, you will get 0.021492, and if you round that up you will get 0.02 which is 2 cents. Now if you want to find the price of more pieces, you can just multiply 2 by however the person needs to buy, and write that as money :)))

5 0
3 years ago
Read 2 more answers
when Jeremy surveyed Thirty seventh grade students at the community pool he found that to a 15 had not read at least one book du
Anettt [7]

200 * 2/15 = the number of students that didn't read any books. This is 26.6, so 40 is not a good estimate 40 students is 20 percent versus 26 being approximately 13 percent.


hope this helps i tryed

ur welcome(;

have a great day

8 0
3 years ago
can someone explain it to me, i don't need the answer, i just need an detailed explanation of how they got the answer using the
zubka84 [21]

Answer:

Step-by-step explanation:

Good idea to review quadratic functions and the quadratic formula.

Quadratics have three coefficients:  ax² + bx + c, and the "discriminant" is defined as b²-4ac.  Please review these rules:

1) if the discriminant is +, the quadratic equation has two real, unequal roots.

2) if the disc. is 0, the equation has two real, equal root.

3) If the disc. is - , the equation has two complex roots.

Here a = 1, b  = -3 and c = 4.  Therefore the discriminant is (-3)²-4(1)(4), or

-7.  Rule 3) applies:  the equation has two complex roots, but no real ones.  Thus we know that the graph does not cross the x-axis.

Graphing the given quadratic, x² - 3x + 4, using a dashed "line," is helpful.  As you can see in the illustration of this graph, the graph neither touches nor crosses the x-axis.  Thus, y = x² - 3x + 4 is greater than 0 for all x.  The answer:  All real numbers.

4 0
3 years ago
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