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sasho [114]
3 years ago
5

Determine the point estimate of the population​ proportion, the margin of error for the following confidence​ interval, and the

number of individuals in the sample with the specified​ characteristic, x, for the sample size provided.
Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
4 0

Answer:

point of estimate p = x/n

Step-by-step explanation:

p is the point estimate for the population , x is the number of success, n is the sample size.

p = Upper bound  + Lower bond/ 2      for population proportion

x = Upper bond + Lower bond /2          for population mean

E = Upper bond - Lower bond /2          E is margin of error

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Diagram shows an irregular hexagon PQRSTU.Fine the value of X + Y=
Lynna [10]
To find the value of x+y, we will first find the sum of all the interior angles of the hexagon.The sum of the interior angles in a hexagon is always equal to 720 degrees.

All the angles in the diagram are in terms of x or y except for angle t. However, we know that the corresponding exterior angle is 30 degrees. The sum of angle t and 30 is 360. We can solve this in an algebraic equation.

t+30=360
Subtract 30 from both sides
t = 330

Now, we can solve for the values of x+y. We can set this up in another algebraic equation.

x+x+x+2y+y+30=720

Combine like terms:
3x+3y+30 = 720

Subtract 30 from both sides:
3x+3y = 690

Divide both sides by 3:
\frac{3x + 3y}{3} =  \frac{690}{3}
x+y = 230

The sum of x and y is 230.
6 0
4 years ago
Find any 3 equivalent ratios for each given ratio.<br> 12:48 *
skelet666 [1.2K]

Answer:

12:48=\frac{12}{48}

Step-by-step explanation:

None

4 0
3 years ago
A hiker is walking down a mountain. She walked​ 5,978 feet in 17 minutes. In that​ time, she descended​ 1,024 feet from the top
olya-2409 [2.1K]

Answer:

63.5 feet/minute

Step-by-step explanation:

She first descended 1,024 feet in 17 minutes

Then she descended 500 feet in 7 minutes

The total feet descended is 1,024 + 500 = 1,524 feet

The total time to descend is 17 + 7 = 24 minutes

The average rate of change in altitude is  

Altitude descended / time

1,524 feet / 24 minutes

63.5 feet /minute

3 0
4 years ago
Could someone please explain I keep getting the wrong answer
Naddika [18.5K]
Of course! so basically for each value of x, for example -6, plug it into the equation. so for -6 do -2/3(-6)+7. hope this helps!
3 0
3 years ago
X + y = 5 ; x - y =3 solve using linear combination
Bas_tet [7]

Answer:

x = 4

y = 1

Step-by-step explanation:

use one equation to solve for one variable.

y = 5 - x

Now plug the value of y in the other equation

x - (5-x) = 3

x+x= 3+5

2x=8

x=4

Now use the value of x to find the value of y on the first equation

y = 5 - x

y = 5 - 4

y = 1


7 0
4 years ago
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