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baherus [9]
3 years ago
8

Which function has an axis of symmetry of x = −2?

Mathematics
2 answers:
lara31 [8.8K]3 years ago
7 0
The last one, D because it is x+2, which is -2

bezimeni [28]3 years ago
6 0

Answer:

d

Step-by-step explanation:

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A CBS News/New York Times opinion poll asked 1,190 adults whether they would prefer balancing the federal budget over cutting ta
nikklg [1K]

Using the <u>normal distribution and the central limit theorem</u>, it is found that there is a 0.0166 = 1.66% probability of a sample proportion of 0.59 or less.

In a normal distribution with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

  • It measures how many standard deviations the measure is from the mean.  
  • After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
  • By the Central Limit Theorem, the sampling distribution of sampling proportions of a proportion p in a sample of size n has mean \mu = p and standard error s = \sqrt{\frac{p(1 - p)}{n}}

In this problem:

  • 1,190 adults were asked, hence n = 1190
  • In fact 62% of all adults favor balancing the budget over cutting taxes, hence p = 0.62.

The mean and the standard error are given by:

\mu = p = 0.62

s = \sqrt{\frac{p(1 - p)}{n}} = \sqrt{\frac{0.62(0.38)}{1190}} = 0.0141

The probability of a sample proportion of 0.59 or less is the <u>p-value of Z when X = 0.59</u>, hence:

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{0.59 - 0.62}{0.0141}

Z = -2.13

Z = -2.13 has a p-value of 0.0166.

0.0166 = 1.66% probability of a sample proportion of 0.59 or less.

You can learn more about the <u>normal distribution and the central limit theorem</u> at brainly.com/question/24663213

7 0
2 years ago
The are of a paraleelogram is 150 square meter. The height of the parallelogram is 15 meters. What is the lenht of the parallelo
Len [333]

Answer:

2,500

Step-by-step explanation:

3 0
2 years ago
Raleigh's temperature was 24 degrees F. At noon the temperature increase by 125%. At 4pm the temperature increase by 40%. What i
Ymorist [56]
The answer is 63.6 degrees Fahrenheit or rounded up it wpuld be 64 degrees
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3 years ago
Area of a circle with a diameter of 4cm
makkiz [27]

Answer:

A≈12.57cm²

Step-by-step explanation:

A=1

4πd2=1

4·π·42≈12.56637cm²

7 0
3 years ago
Read 2 more answers
How many different lunch combinations can be made from two sandwich choices three ide choices and three beverage choices if you
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From what you said the choices go up by 3 every time in different combinations . Its at least 36 or more combinations .
i did my best guess from the choice .. hope it helps 
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