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Sphinxa [80]
2 years ago
5

Slope -5,y-intercept (0,3) What is f(x)

Mathematics
1 answer:
MA_775_DIABLO [31]2 years ago
8 0

Answer:

f(x)=-5\ x+3

Step-by-step explanation:

Given:

Slope of line =-5

y-intercept =(0,3)

The equation of line is given by :

f(x)=m\ x+b

where m represents slope of line and b represents y-intercept.

So from the given data, we have m=-5 and b=3

∴ The equation of line is given by:

f(x)=-5\ x+3

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A report on consumer financial literacy summarized data from a representative sample of 1,664 adult Americans. Based on data fro
daser333 [38]

Answer:

a. The 95% confidence interval for the proportion of all adult Americans who would give themselves a grade of A or B on their financial knowledge of personal finance is (0.54, 0.588). This means that we are 95% sure that the true proportion of all adult Americans who would give themselves a grade of A or B on their financial knowledge of personal finance is between these two bounds.

b. Because this confidence interval is entirely above 0.5, the interval is consistent with the statement that a majority of adult Americans would give themselves a grade of A or B.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

Sample of 1,664 adult Americans, 939 people in the sample would have given themselves a grade of A or B in personal finance.

This means that n = 1664, \pi = \frac{939}{1664} = 0.5643

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5643 - 1.96\sqrt{\frac{0.5643*0.4357}{1644}} = 0.54

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5643 + 1.96\sqrt{\frac{0.5643*0.4357}{1644}} = 0.588

The 95% confidence interval for the proportion of all adult Americans who would give themselves a grade of A or B on their financial knowledge of personal finance is (0.54, 0.588). This means that we are 95% sure that the true proportion of all adult Americans who would give themselves a grade of A or B on their financial knowledge of personal finance is between these two bounds.

(b) Is the confidence interval from part (a) consistent with the statement that a majority of adult Americans would give themselves a grade of A or B?

Yes, because the confidence interval is entirely above 0.5.

Because this confidence interval is entirely above 0.5, the interval is consistent with the statement that a majority of adult Americans would give themselves a grade of A or B.

8 0
2 years ago
A prism is a 3d shape with the same _______ all the way through
Aloiza [94]

Answer:

cross-section

Step-by-step explanation:

prism is a type of three-dimensional (3D) shape with flat sides.

It has the same cross-section all along the shape from end to end; that means if you cut through it you would see the same 2D shape as on either end.

8 0
2 years ago
What is the correct answer?
emmainna [20.7K]

Answer:

68

Step-by-step explanation:

5 0
3 years ago
Please please please please help
satela [25.4K]

Answer:

The answer to your question is option 3) 93,000,000 miles

5 0
2 years ago
Which is equivalent to 3/8"?
Fed [463]

Answer:

Depends on what you are asking for.

Step-by-step explanation:

If want a decimal you would divide 3 by 8 to get 0.375

If you want equivalent fractions, you could multiply the numerator and the denominator by the same number.

ex: <u>3</u> (2) = <u>6</u>

     4 (2)    8

7 0
3 years ago
Read 2 more answers
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