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Veronika [31]
2 years ago
15

In an ecological study, the sampling mean proportion is 0.28 and the sample size is 50. What is the margin of error with a confi

dence level of 95%?
Mathematics
1 answer:
babunello [35]2 years ago
3 0
In an ecological study, the sampling mean proportion is 0.28 and the sample size is 50. a) What is the margin of error with a confidence level of 95%?
The solution to a system of two linear equations is (4, -3). One equation has a slope of 4. The slope of the other line is the negative reciprocal of the slope of the first. The system described above is represented by the following equations: y --X-2 y - 4x - 19 Please select the best answer from the choices provided
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Mark recently moved to a new state. During his first month he visited five state parks. Each month after he visited two more. Ca
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I think it’s 5 7 9 11
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3 years ago
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A black line is longer than a gray line. The gray line is longer than a white line. Is the black line shorter or longer than the
enot [183]
The gray line is longer than the white line.
The black line is longer than the gray line.

White    -------------------------

Gray      ------------------------------------------

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Answer: The black line is longer than the white line.
4 0
3 years ago
The table and graph show that there are 32 ounces in a quart.
antiseptic1488 [7]

Answer:

The point (56, 1.75) is on the line.

Step-by-step explanation:

Given two points, we can get the slope (m) as follows:

m = (y2 - y1)/(x2 - x1)

where (x1, y1) and (x2, y2) are the points. Replacing with (8, 0.25) and (16, 0.5):

m = (0.5 - 0.25)/(16 - 8) = 0.03125

The point-slope form of a line is:

y - y1 = m(x - x1)

Replacing with data:

y - 0.25 = 0.03125(x - 8)

To know if point (56, 1.75) is on the line, we have to replace x = 56 in the obtained equation and check y-value, as follows:

y - 0.25 = 0.03125(56 - 8)

y - 0.25 = 1.5

y = 1.5 + 0.25 = 1.75

Then, the point is on the line. This means that there are 56 ounces in 1.75 quarts.

7 0
3 years ago
Read 2 more answers
I need some help pls
Nimfa-mama [501]
Answer is A, basically using the Pythagorean theorem but in a slightly different way, should still get you the same answer.
4 0
3 years ago
Pleeeese Help.
Andrej [43]
If APR is 24.99%, this means that the monthly rate is 24.99/12 = 2.0825%. T0 - Time of Purchase - Principal amount is $396 T1 - 1 month after purchase - Amount owing is 396*1.020825 = $404.25 5% of that sum is $20.21 Remaining balance is 404.25-20.21 = $384.04 T2 - 2 months after purchase - Amount owing is 384.04*1.020825 = $392.04 5% of that sum is $19.60 Remaining balance after 2 months is 392.04-19.60 = $372.44 T3 - 3 months after purchase - Amount owing is 372.44*1.020825 = $380.20 5% of that sum is $19.01 Remaining balance after 3 months is 380.20 - 19.01 = $361.19. Seeing by your answer choices i would say Option D is your closest Hope it helps !!
3 0
3 years ago
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