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lisabon 2012 [21]
3 years ago
9

in a Gallup youth survey done in 2000, 501 randomly selected American teenagers were asked how well they get along with their pa

rents. A survey result was that of 270 teenagers said they get along "very well" with their parents. Use this to estimate the proportion who would say they got along "very well" with their parents, including a margin of error. ​

Mathematics
1 answer:
Misha Larkins [42]3 years ago
4 0

The margin of error would be 1 / √n, where n is the number of students asked.

Margin of error = 1/√501 = 0.0446

Multiply by 100 to change to a percent:

0.446 x 100 = 4.46%

Rounding may be off slighly, so it looks like b would be the correct answer.

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Readme [11.4K]

the equation of the line is y= x-4

Step-by-step explanation:

so so the first thing that you're going to do is get y alone

-x-5=y

next you're going to find your slope which in this case is negative one.

after that in order to find the equation of a parallel line you're going to find the reciprocal of the slope.

so in this case the reciprocal is one.

next you're going to substitute in the cordinates to find the y intercept

x+b=y. (-1)+b= -5. (. b is the y intercept)

b= -4

6 0
4 years ago
Three hikers equally shared One-half gallon of water. Explain how you would use an area model to find the amount of water each h
givi [52]

Answer:

1/6 gallon of water

Step-by-step explanation:

Number of hikers = 3

Quantity of water shared = 1/2 gallon of water

If the water was shared equally among the hikers, then,

Amount of water each hiker drank = Quantity of water shared ÷ Number of hikers

= 1/2 ÷ 3

Multiply 1/6 by the reciprocal of 3

The reciprocal of 3 = 1/3

1/2 ÷ 3

= 1/2 × 1/3

= (1 * 1) / (2 * 3)

= 1/6

Amount of water each hiker drank = 1/6 gallon of water

7 0
3 years ago
Can someone help me? I need to turn this in ASAP!! Right answer gets brainliest <3
Ket [755]

Answer:

interval 41-50 and 61-70 i think

Step-by-step explanation:

6 0
3 years ago
Suppose a-b=0 which one of these expressions equals ab
I am Lyosha [343]

Answer:

  E)  b^2

Step-by-step explanation:

Solving the first equation for a, we get ...

  a - b = 0

  a = b . . . . . . add b to both sides

Now, the expression ab can be rewritten as

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6 0
3 years ago
What is the answer to:<br> -4(2x+2) &lt;-40
mars1129 [50]

Answer: x > 6

Step-by-step explanation:  -4(2x+2) < -40

-8x - 8 < -40

      +8     +8

-8x < 48

/-8x   /-8x

x  > 6              *The less than sign got flipped to a greater than sign because we divided by a negative.

5 0
2 years ago
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