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Sveta_85 [38]
3 years ago
6

bus escolar. A) Muchos niños tienen una aviones. B) Para ir (In order to go) de los Estados Unidos a Puerto Rico, necesitas (you

need) un barco. C) Muchas personas van al centro (downtown) en un coche. D) Muchos alumnos van a la escuela en un autobús. E) Las __________ tienen 2 ruedas (wheels). motocicletas F) RENFE es para los bicicleta. G) Mercedes Benz es una marca (brand) de un trenes. H) En el aeropuerto de Barajas en Madrid, hay muchos
SAT
1 answer:
lakkis [162]3 years ago
8 0
Las motocicletas tienen dos ruedas. (Sorry I didn't know what the question was)
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Sound travels faster through solids (that are elastic) than liquid or air.
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What is a positive way to present an honest picture of yourself
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3 years ago
In a study of helicopter usage and patient survival, among the 56,074 patients transported by helicopter, 235 of them
xxMikexx [17]

Using the hypergeometric distribution, it is found that the probability is 0.845 = 84.5%.

--------------------

  • The patients are chosen from the sample without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

The parameters are:

  • x is the number of successes.
  • N is the size of the population.
  • n is the size of the sample.
  • k is the total number of desired outcomes.

Combination formula:

is the number of different combinations of x objects from a set of n elements, given as:

C_{n,x} = \frac{n!}{x!(n-x)!}

--------------------

  • 56074 patients, thus N = 56074
  • Sample of 40, thus, n = 40
  • 235 left against medical advice, thus, k = 235.

The probability that none left against medical advice is P(X = 0), so:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 0) = h(0,56074,40,235) = \frac{C_{235,0}*C_{55839,40}}{C_{56074,40}} = 0.845

The probability is 0.845 = 84.5%.

A similar problem is given at brainly.com/question/24008577

6 0
2 years ago
Jessica wants to get a credit card, but the bank is refusing to give her one. What could be the possible reason behind the bank'
tangare [24]

Answer:

B. She has a bad credit history

Explanation:

One of the main requirements to get a credit card is to have a good credit score and this is one of the things that banks check. If someone that request a credit card has a bad credit history, the bank will refuse to give it. Because of that, the possible reason behind the bank's refusal to comply with Jessica's request is that she has a bad credit history.

The other options are not right because it is not necessary to have an account with the bank to get a credit card, a good credit history will allow you to get it, the age is not an issue and if someone doesn't have enough resources to get the card, it is possible to have a cosigner for the bank to approve it.

7 0
3 years ago
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