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2 years ago

Please help ASAP, need both. Thank you in advance

SAT

2 answers:

mars1129 [50]2 years ago

4 0

For the first one I’m not sure I’m decided between either A or B, for the second one is A

HACTEHA [7]2 years ago

3 0

I do not know the answer but I searched for it. Look what I found.

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Which sentence in the paragraph below is the topic sentence of the paragraph? We feed wild birds in the winter. Every morning my

ExtremeBDS [4]

Answer:

Explanation:

we feed wild birds in the winter- topic sentence= first sentence of paragraph

4 0

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%.

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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:

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

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

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

The author wants to use overstatement in order to emphasize the speaker’s exhaustion. Which choice best accomplishes this goal?

Elenna [48]

A because if your emphasizing sleep
The you should keep that sentence

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2 years ago

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While many people might scoff at the very concept, light pollution is fast becoming a serious problem. Light pollution most comm

liberstina [14]

While none of the answers is what I consider the main idea of this essay, I believe that C is the best possible answer. Each of the paragraphs discusses how particular groups are impacted by the use of lights in urban areas.
hope this helped :)
alisa202

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2 years ago

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Mrs. Foster is making a ribbon garland for her baby’s nursery. She buys 650 centimeters of pink ribbon, 3 meters 70 centimeters

Andrej [43]

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2 years ago