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timofeeve [1]
3 years ago
11

A survey of 100,000 adults found that 5% of Americans walk to work. Which of the following could be used to simulate the results

of this survey and develop a margin of error?
A. Take a spinner that has 20 sections and mark one section. Spin the spinner 100,000 times. Record the portion that lands on the marked section. Do this 100 times. The margin of error will be half the distance of the centermost 95% of proportions.
B. Flip a coin and record the responses. Do this 100 times. The margin of error will be half the distance of the centermost 95% of proportions.
C. Ask 20 random people if they walk to work and record responses. Do this 100,000 times.
Mathematics
1 answer:
aalyn [17]3 years ago
3 0

Answer:

A I think im fairly certain

Step-by-step explanation:

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How do u find this?
nasty-shy [4]

Answer:

<h2><u><em>432 cm³</em></u></h2>

Step-by-step explanation:

The volume of a prism =Base Area× Height.

6 * 9 * 8 =

54 * 8 =

432 cm³

5 0
2 years ago
Find the solution to the system of equations: x 3y = 7 and 2x 4y = 8 1. isolate x in the first equation: 2. substitute the value
DIA [1.3K]

The solution to the system of equation are x = -2 and y = 3

<h3>How to find the solution of a system of equation?</h3>

x + 3y = 7

2x + 4y = 8

Let's isolate x in the first equation

x = 7 - 3y

substitute the value of x in the second equation.

Therefore,

2(7 - 3y) + 4y = 8

14 - 6y + 4y = 8

-2y = 8 - 14

-2y = -6

y = -6 / -2

y = 3

Hence,

x + 3(3) = 7

x = 7 - 9

x = -2

learn more on equation here: brainly.com/question/12926248

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4 0
2 years ago
Find the midpoint of diagonal AC of ABCD
Vladimir79 [104]

Answer:

M= (1, 3)

Step-by-step explanation:

we have from the picture:

A = (-3,5)

C = (5, 1)

M = Midpoint

M =((x1+x2)/2), ((y1+y2)/2)

so we have:

x1= -3     y1 = 5

x2= 5     y2= 1

M= ((-3+5)/2) , ((5+1)/2)

M = ((2/2) , (6/2))

M= (1, 3)

5 0
3 years ago
What is the area of the isosceles trapezoid shown?
balandron [24]

If you want the area of the entire trapeziod.

The formula for area of a trapeziod is:

1/2h(b₁+b₂)

So the equation applied to the trapeziod is:

2.5(20+12)

20+12 is 32. 32 multiplied by  2.5 is 80.

<h3><u><em>Your answer is 80.</em></u></h3>
4 0
3 years ago
Read 2 more answers
Who is good at geometry and willing to answer my questions?<br> The reward: 50 pts.
blsea [12.9K]

Answer:

me

Step-by-step explanation:

6 0
3 years ago
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