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shepuryov [24]
2 years ago
15

Maggie wants to know how many students in her school enjoy watching sports on TV. She asks all 25 students in her math class and

finds that 60% of her classmates enjoy watching sports on TV. She claims that 60% of the school's student population would be expected to enjoy watching sports on TV. Is Maggie making a valid inference about her population?
Yes, it is a valid inference because she asked all 25 students in her math class

Yes, it is a valid inference because her classmates make up a random sample of the students in the school

No, it is not a valid inference because her classmates do not make up a random sample of the students in the school

No, it is not a valid inference because she asked all 25 students in her math class instead of taking a sample from her geography class
Mathematics
2 answers:
RSB [31]2 years ago
6 0
No, it is not a valid inference because her classmates do not make up a random sample of the students in the school.
Viefleur [7K]2 years ago
4 0
Your answer to your question is the 3rd option.
I hope this helps!
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A-168 the tv now cost $168 dollars
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Pam bought a pair of shoes on sale for $22.40. If this was 20%. Off the original price, find the original price of the shoes
Rus_ich [418]

Answer:

26.88

Step-by-step explanation:

20%*22.40=4.48

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3 0
1 year ago
the sum of the first nine terms of an arithmetic series is 162, and the sum of the first 12 terms is 288. Determine the first fi
Natali5045456 [20]

Answer:

\boxed{\pink{\tt \leadsto Sum \ of \ first \ five \ terms \ is \ 50 . }}

Step-by-step explanation:

Given that , the sum of the first nine terms of an arithmetic series is 162 and the sum of the first 12 terms is 288.

\boxed{\red{\bf \bigg\lgroup For \ answer \ refer \ to \ attachment \bigg\rgroup  }}

<h3><u>Related</u><u> </u><u>Infor</u><u>mation</u><u> </u><u>:</u><u>-</u><u> </u></h3>

• The sum of n terms of an AP is

\boxed{\orange{\sf S_n = \dfrac{n}{2}[2a+(n-1)d] }}

• nth term of an AP is given by ,

\boxed{\blue{\sf T_n = a+(n-1)d }}

8 0
2 years ago
COMPLETING THE SQUARE<br> X^2– 2x +
Studentka2010 [4]

Answer:

x^2 -2x + 1

Step-by-step explanation:

Think of a quadratic equation as

ax^2 + bx + c

x^2 -2x +

Comparing the two equations

a = 1 ,  b = -2,  c = ?

c becomes the missing part

Divide b by 2

-2/2 = -1

square the result

-1^2

= 1  this is what to add to get a perfect square

x^2 -2x + 1

(x - 1)^2

6 0
3 years ago
Which equation represents a non-proportional situation? y = 6x y = –2x + 14 y = –3x y = 14x
ki77a [65]

The equation of proportional situation is y = ax.

Therefore your answer is y = -2x + 14

3 0
3 years ago
Read 2 more answers
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