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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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What is 1/2 multiplied by 1/2? What is 1/2 added by 1/2?
satela [25.4K]
Answer:
1/4 & 1

Solution:
1/2 * 1/2 = (1*1)/(2*2)

1/2 + 1/2 = (1+1)/(2) = 2/2 = 1
7 0
2 years ago
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After mixing two types of candies, the price became $3.40 per lb. The quantity of the first type of candy was 5/12 of the quanti
drek231 [11]

Answer:

$2.90

Step-by-step explanation:

The quantity of the 1st type of candy be x lb and that of the second type − y lb with the price of $ p/lb.

Then, x=5y/12 or y=2.4x.

The "total price" equation will be: 4.6x + 2.4xp = 3.4(x+2.4x).  

Solving for p, we get p = $2.90.

5 0
3 years ago
Please help, I don’t get this
koban [17]

Answer:

3

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6 0
2 years ago
PLEASE I NEED HELP
drek231 [11]

Answer:

A.

4x {}^{2}  +  \frac{3}{2} x - 7

Step-by-step explanation:

Add theses functions

\frac{x}{2}  - 3 + 4 {x}^{2}  + x - 4 \\ 4 {x}^{2}  +  \frac{3}{2} x - 7

7 0
3 years ago
Find the angle of elevation, , correct to decimal places, from the roof of the smaller building to the roof of the larger buildi
Ratling [72]

The angle of elevation for the given figure will be 68.198°.

<h3>What is a trigonometric function?</h3>

The fundamental 6 functions of trigonometry have a range of numbers as their result and a domain input value that is the angle of a right triangle.

The trigonometric function is only valid for the right angle triangle and it is 6 functions which are given as sin cos tan cosec sec cot.

The trigonometric functions found in the four quadrants, as well as their graphs, domains, and differentiation and integration, will all be understood.

The trigonometric function is very good and useful in real-life problems related to the right-angle triangle.

Given the figure is making a right-angle triangle with a base of 10m and a height of 45 - 20 = 25 m

By trigonometric function tan

Tanθ = 25/10

θ = 68.198°

Hence "The angle of elevation for the given figure will be 68.198°".

For more information about the trigonometric function,

brainly.com/question/14746686

#SPJ1

6 0
1 year ago
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