answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Natasha2012 [34]
2 years ago
13

A political polling agency predicts candidate A will win an election with 54% of the votes. Their poll has a margin of error of

4% both above and below the predicted percentage. Which inequality represents the predicted possible percent of votes, x, for candidate A? 50 ≤ x ≤ 58 x ≥ 50 or x ≤ 58 x ≥ 52 or x ≤ 56 52 ≤ x ≤ 56
Mathematics
2 answers:
Marizza181 [45]2 years ago
7 0

Answer:

The answer is A

rewona [7]2 years ago
6 0
A margin of error means how much a prediction can be wrong. So if a prediction is 54% and the margin of error is 4%, then it can be wrong by 4 percent, so it could be 4 % less (50%) or more (58%). 

Correct Answer;
X is the actual answer.
50%≤x≥58%
brainliest pls


You might be interested in
A delivery truck is stocked with boxes of leather footballs. The graph shows the relationship between the number of footballs an
pashok25 [27]

Answer:

21

Step-by-step explanation:

To find the answer, you'd have to continue tracing the diagonal line until it intersects with the vertical line that corresponds to the number 3.

If you do that, you'll see that in3 boxes, there are 21 footbals.


You can also calculate it mathematically:

If you have 7 balls per box as shown in the graph, you just have to multiply 7 by 3 to know how many balls you'll find in 3 boxes. 7 * 3 = 21.



Hope it helped,



BioTeacher101

6 0
1 year ago
Read 2 more answers
Elizabeth swims 50 feet in ten seconds jesse swims 110 feet in 20 seconds reagan swims 160 feet in half a minute. Who swims fast
Anna007 [38]

Answer:

Jesse swims the fastest with the rate of 5.5 ft in 1 second.

Step-by-step explanation:

The swimming rate of Elizabeth is:   50 feet in 10 seconds

So, the swimming rate per second is \frac{50}{10}  = 5 ft

⇒Elizabeth swims 5 ft in 1 second.

Similarly,the swimming rate of Jesse is:   110 feet in 20 seconds

So, the swimming rate per second is \frac{110}{20}  = 5.5 ft

⇒Jesse swims 5.5 ft in 1 second.

Also,the swimming rate of Reagan is:   160 feet in 30 seconds

So, the swimming rate per second is \frac{160}{30}  = 5.33 ft

⇒Reagan swims 5.33 ft in 1 second.

By comparing the per second rate of swimming,

5.5 is the greatest of the all rates.

Hence, Jesse swims the fastest with the rate of 5.5 ft in 1 second.

3 0
2 years ago
Read 2 more answers
Solve the equation. –3x + 1 + 10x = x + 4 x = x equals StartFraction one-half EndFraction x = x equals StartFraction 5 Over 6 En
velikii [3]

Answer:

1/2

Step-by-step explanation:

8 0
1 year ago
Read 2 more answers
Thirty-seven percent of all Americans drink bottled water more than once a week (Natural resources Defense Council, December 4,
lesantik [10]

Answer:

a) The sampling distribution for n=540 has a mean sample proportion of p=0.37 and a standard deviation of σs=0.0208.

b) probability = 0.99998

d) probability = 0.99874

e) You gain 0.12% in probability for an increase of 80% in sample size.

The increase in sample size is not justified by the increase in probability, for this margin of error (Δp=0.09).

Step-by-step explanation:

a) We have a known population proportion π=0.37 and we have to describe the sampling distribution when the sample size is n=540.

The mean sample proportion is expected to be the same as the population proportion:

\bar p = \pi = 0.37

The standard deviation of the sampling will be the population standard deviation divided by the square root of the sample size:

\sigma_s=\dfrac{\sigma}{\sqrt{n}}=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.37*0.63}{540}}=\sqrt{0.000431667}=0.0208

Then, we can say that the sampling distribution will have a p=0.37 and a standard deviation σs=0.0208.

b) We have to calculate the probability that the sample proportion will be within 0.09 of the population proportion.

We can calculate the z-value as:

z_1=\dfrac{p_1-\bar p}{\sigma_s}=\dfrac{0.09}{0.0208}=4.3269\\\\\\z_2=\dfrac{p_2-\bar p}{\sigma_s}=\dfrac{-0.09}{0.0208}=-4.3269

As the distribution is symmetrical, we can calculate the probabilty that he sample proportion will be within 0.09 of the population proportion as:

P(|p-\bar p|

probability = 0.99998

d. Now the sample is smaller (n=300), so the standard deviation of the samping distribution:

\sigma_s=\dfrac{\sigma}{\sqrt{n}}=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.37*0.63}{300}}=\sqrt{0.000777}=0.0279

We have to recalculate the z-scores:

z_1=\dfrac{p_1-\bar p}{\sigma_s}=\dfrac{0.09}{0.0279}=3.2258\\\\\\z_2=\dfrac{p_2-\bar p}{\sigma_s}=\dfrac{-0.09}{0.0279}=-3.2258

And the probability is:

P(|p-\bar p|

probability = 0.99874

e. The increase in sample size is 80%

\Delta n\%=\dfrac{n_1}{n_2}-1=\dfrac{540}{300}-1=1.8-1=0.8=80\%

and the increase in probability is 0.12%

\Delta P\%=\dfrac{P_1}{P_2}-1=\dfrac{0.99998}{0.99874}-1=1.0012-1=0.0012=0.12\%

You gain 0.12% in probability for an increase of 80% in sample size.

The increase in sample size is not justified by the increase in probability, for this margin of error (Δp=0.09).

7 0
1 year ago
on a certain day the temperature in seattle was -1 and the temperature in houston was 18 how many degrees lower was the temperat
Schach [20]
The temperatur in settle was 18 - (-1) = 18 + 1 = 19 degrees lower
8 0
1 year ago
Other questions:
  • A man spent 15/16 of his entire fortune in buying a car $7500. How much money did he possess?
    7·2 answers
  • Santos flipped a coin 500 times. The coin landed heads up 225 times. Find the ratio of heads to total number of coin flips. Expr
    7·2 answers
  • Geometric abstraction is a form of artwork that uses geometric forms or shapes. Some twentieth-century American artists are know
    8·1 answer
  • Mr robbins earns a commission on each airfare he books. At the end of the day,he had booked $208.60 worth if airfare and earned
    14·1 answer
  • David won the lottery. He can take a single lump sum payout of $10 million dollars or receive $750,000 per year for the next 25
    12·2 answers
  • Mr. Lin hires a moving company to help transport furniture to his new home. The bill from the moving company is $400. Mr. Lin in
    12·2 answers
  • Mark is investing $8,000 in an account paying 5.5% interest compounded monthly.
    12·1 answer
  • HELP ASAP LIKE WHEN YOU SEE IT ANSWER ALL 7 QUESTIONS *RIGHT*AND I'LL MARK YOU THE BRAINLIST ANSWER !!!!!! WITH 13 POINTS
    7·1 answer
  • A grocery bag contains x apples, each weighing One-third of a pound, and y pounds of grapes. The total weight of the grocery bag
    13·1 answer
  • Steven bagged 52 pounds of potatoes. About what is that measure in kilograms?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!