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Lelu [443]
3 years ago
11

HELP ASAP PLEASE 750 - 300

Mathematics
1 answer:
IRISSAK [1]3 years ago
4 0

Answer:

750-300=350

250+200=450......................................

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Determine the point estimate of the population proportion, the margin of error
ahrayia [7]

Answer:

\hat p=0.645\\\\ME=0.233\\\\x=645 \ individuals

Step-by-step explanation:

-Given the boundaries as 0.412 and 0.878

-\hat p is the point estimate for the population proportion and is calculated as follows:

\hat p=\frac{Upper \ Bound+Lower \ Bound}{2}\\\\=\frac{0.878+0.412}{2}\\\\=0.645\\\\

#The margin of error, ME can be calculated for the confidence intervals using the formula:

ME=\frac{Upper \ Bound-Lower \ Bound}{2}\\\\=\frac{0.878-0.412}{2}\\\\=0.233

#The number of individuals in the sample is the product of the point estimate and population size:

\hat p=\frac{x}{n}\\\\x=\hat pn\\\\=0.645\times 1000\\\\=645

Hence, there are 645 individuals in the sample.

8 0
3 years ago
The price of a computer was decreased by 7% to £500. What was the price before the decrease? Give your answer to the nearest pen
aliina [53]

Answer:

537.6

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x=537.6

8 0
3 years ago
Mrs. Bonilla is a saleswoman at a furniture store. Her commission on rugs is 10% and her commission on furniture is 15%. Her goa
lara31 [8.8K]
<span>so here is how you can answer this: 

Your commission must be equal to the sum of the 10% of the value of the rug and the 15% of the value of the furniture and equate this to the value of your commission. Translate this to a mathematical equation, you would get, 

Commission = (10%) (value of rugs) + (15%) (value of furniture).
substituting the known values, 
 
5000 =.1 * x + .15 * 12500.

Now it's a matter of finding for x. You should get, 

 x = $31,250.</span>
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On the map, the distance between Lake Moore and Lake Wyman is 4.5 centimeters.
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8 0
3 years ago
X+y=-2 7x-4y=8 graph
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Answer:

x+y=-2

7x-4y=8

Step-by-step explanation:

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3 years ago
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