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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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The big dog weighs 5 times as much as the little dog. The little dog weighs 2 3 as much as the medium-sized dog. The medium-size
disa [49]

Answer:

The answer to your question is the big dog weighs 120 pounds

Step-by-step explanation:

Data

big dog = b    

medium dog = m

small dog = s

Equations

       b = 5s

       m = 12 + s

       s = 2/3 m

Process

1.- Substitute m in the last equation

       s = 2/3(12 + s)

       s = 24/3 + 2/3s

       s - 2/3s = 8

       1/3 s = 8

             s = 8(3)

             s = 24 pounds

2.- Substitute s in the first equation

        b = 5(24)

        b = 120 pounds

     

4 0
3 years ago
Determine the period
aleksandrvk [35]

Answer:

16 units

Step-by-step explanation:

period = length of an interval that contains exactly one copy of the repeating pattern, so from one peak to another peak.

in this graph its the peaks are 1 and 17, hence the period is 16

6 0
2 years ago
Steve paid $62 for groceries last week. That was $6.75 more then he spent this week. How much did Steve spend this week?
yarga [219]
the answer is to 62-6.75 is 55.25
6 0
3 years ago
Read 2 more answers
Last one please explain and give answer
nlexa [21]

4p - 5 (p + 6 )

4p - 5p - 30

-p -30

this is the answer.

hope it helps.

4 0
3 years ago
A developer has 7 1/2 acres of land to build houses on. If each house is to be built on 1/4 acre plot, how many houses can he bu
Pavel [41]

Answer:

He could build 30 houses.

Step-by-step explanation:

7 1/2 divided by 1/2 equals 30!

7 0
3 years ago
Read 2 more answers
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