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1 year ago

Evaluation of a respiratory symptom diary for clinical studies of idiopathic pulmonary fibrosis

SAT

1 answer:

lisabon 2012 [21]1 year ago

7 0

Idiopathic pulmonary fibrosis is a chronic, deadly condition that causes a steady loss in lung function.

The phrase pulmonary fibrosis refers to lung tissue scarring and is the cause of worsening dyspnea (shortness of breath). Fibrosis is commonly connected with a dismal prognosis.

<h3>What are the symptoms for Idiopathic pulmonary fibrosis?</h3>

The following are some of the primary symptoms of Idiopathic pulmonary fibrosis:

Breathing difficulty
a chronic dry cough
weariness.
Appetite loss and weight loss
fingertips that are rounded and swollen (clubbed fingers)

Learn more about Idiopathic pulmonary fibrosis:

brainly.com/question/14732029

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How many identification code are possible by using 3 letters if no letter may be repeated?

kicyunya [14]

Answer:

8 sorry if im wrong

Explanation:

4 0

2 years ago

Read 2 more answers

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%.

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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:

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

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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

Byron earns $11. 00 per hour. How many hours will byron have to work to earn $143. 00? 7. 7 hours 13. 0 hours 14. 3 hours 15. 7

kari74 [83]

The correct answer is 13 hours
Divide 143 by 11 and you’ll get 13.

4 0

2 years ago

A motorcycle goes 120 km in 3 l of petrol. How long will it go in 6 l of petrol?.

MatroZZZ [7]

<h2>ANSWER</h2>

A motorcycle goes 120 km in 3 l of petrol. How long will it go in 6 l of petrol?

Total kilometres covered ÷ number of litres of petrol used. So 40kmpl is your bikes average fuel consumption for a litre of petrol. 600 ÷ 40 = 15 litres . Therefore , you require 15 litres of petrol to travel a distance of 600 kilometres.

I hope it will help you

 $kai6418$ 

#carryonleraning

7 0

2 years ago

At stp, fluorine is a gas and bromine is a liquid because, compared to fluorine, bromine has.

vovangra [49]

Bromine has stronger inter molecular force than Fluorine.

<h3> Inter molecular forces and relationship with physical states of matter</h3>

The intermolecular forces of a substance tells the physical state of that substance , We can therefore say that the Solid, liquid and gas states of substances depends on the intermolecular forces surrounding them.

For solids,the inte molecular forces will be so strong as they draw the molecules together giving them a compact structure.

For liquids, the the inter molecular forces will be just strong enough to keep the molecules together in a confined space.

For gases, the the inter molecular forces are weakest as the molecules move about.

We can then conclude that At stp, fluorine is a gas and bromine is a liquid because, compared to fluorine, bromine has a stronger intermoleclar force.

See more of intermolecular forces here: brainly.com/question/492113

5 0

2 years ago