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oksano4ka [1.4K]
2 years ago
10

In the section describing the survey methods, the report states, “For results based on the total sample of national adults, the

margin of sampling error is ±4 percentage points at the 95% confidence level.” Interpret the meaning of this statement in terms of the poll. Use any statistic given in the report as an example to explain your interpretation.
Mathematics
1 answer:
Arisa [49]2 years ago
3 0

Answer:

The interpretation of that same problem is listed throughout the section below on explanation.

Step-by-step explanation:

Interpretation:

Researchers seem to be confident with 95% that the sample selection standard error seems to be + as well as - 4 percent respectively.

This same margin of sampling error would then decrease from either the mean or average value by four percentage points smaller or even larger, it describes the survey method.

So that the above is the right answer.

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Acute angles Angles that measure 60°
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Acute angles are angles that measure below 90°, meaning below a right angle.
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4 years ago
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Can a function be both even and odd? use algebra to find the answer.
Evgesh-ka [11]

Answer:

Im not sure exactly what you want the function to be. Because it can be any number. only the signs would change it

Step-by-step explanation:

okay so lets try this then..

if f(x) is an even number...let say 2

then f(-2)= 2x²+x+6

then it would be 2(-2²)+(-2)+6......-4

https://www.symbolab.com/solver/step-by-step/F%5Cleft(x%5Cright)%3D-F%5Cleft(x%5Cright)

5 0
3 years ago
15 POINTS
tensa zangetsu [6.8K]

To find the answer, all we need to do is plug in the slope and point they gave us into the Point Slope Formula!

The point slope formula is ...

y - y_{1} = m ( x - x_{1} )

So lets put them in!

y - 4    =    2/3     (x - (-3))

Tip: remember when you subtract a negative number, it turns into adding !

So our final answer is probably D (I think you may have put a <u>typo</u>)

y - 4 = \frac{2}{3} (x + 3)

3 0
3 years ago
Jacob invested $300 in a savings account and earned $81 in simple interest at the end of 9 years. what was the interest rate
Brilliant_brown [7]

Answer:

A.

Step-by-step explanation:

We use the simple interest equation of A=P(1+rt).

A-the total amount with interest earned

P-the initial amount or principal

r-rate

t-time in years

We substitute the values P=300, A=381, and t=9. We then solve for r.

381=300(1+9r)

We divide both sides by 300.

\frac{381}{300}=\frac{300(1+9r)}{300}

Simplify.

1.27=1+9r

We subtract 1 from both sides.

1.27-1=1-1+9r

Simplify.

0.27=9r

We divide by 9.

\frac{0.27}{9}=\frac{9r}{9}

r=0.03

We need to convert the decimal to a percentage by multiplying by 100.

The interest rate is 3%.


7 0
4 years ago
WILL MARK BRAINLIEST + 50 POINTS
iren [92.7K]

Answer:

The dimensions are 25 * 50 feet.

Step-by-step explanation:

The 3 sides of the pen will measure (2x + y)  feet where x is the width and y is the length.

2x + y = 100

y = 100 - 2x

The area A  = xy =  x(100 - 2x) ft^2.

Finding the maximum area.

A = x(100 - 2x)

A = 100x - 2x^2     Finding the derivative:

A' = 100 - 4x

For maximum value of A this equals zero:

100 - 4x = 0

4x = 100

x = 25 ft,  so this is the width.

The length is  100  - 2(25) =  50 ft.

8 0
3 years ago
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