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joja [24]
3 years ago
15

If FG = 4 and GH = 15, find FH

Mathematics
1 answer:
Pie3 years ago
5 0

Answer:

19

Step-by-step explanation:

Assuming you're trying to find the length of the line, you would add both the lengths of FG and GH together. 4+15 is 19 so that should be right. Just to be sure, there's a check mark at the top right to check your answer.

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4. In a sample of 1000 people, 130 can wiggle their ears. Two unrelated people are
Elina [12.6K]

Using the hypergeometric distribution, it is found that there is a 0.7568 = 75.68% probability that neither can wiggle his or her ears.

The people are chosen from the sample without replacement, which is why the <u>hypergeometric distribution</u> is used to solve this question.

Hypergeometric distribution:

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

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

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.

In this problem:

  • 1000 people means that N = 1000
  • 130 can wiggle their ears, thus k = 130
  • Two are selected, thus n = 2.

The probability that neither can wiggle his or her ears is P(X = 0), thus:

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

P(X = x) = h(0,1000,2,130) = \frac{C_{130,0}C_{870,2}}{C_{1000,2}} = 0.7568

0.7568 = 75.68% probability that neither can wiggle his or her ears.

A similar problem is given at brainly.com/question/24826394

5 0
2 years ago
Someone help math please due today
natali 33 [55]

Answer:

What is the question

Step-by-step explanation:

So u can solve it for u

5 0
3 years ago
A pair of vertical angles have the measure of 2y + 5 degrees + 4y degrees what is the value of y​
timama [110]

Answer:

The value of y s 2.5

Step-by-step explanation:

Vertical angles are always equal to one another. In this case, we can find the angles by setting the two values equal and solving algebraically.

2y + 5 = 4y

5 = 2y

2.5 = y

7 0
3 years ago
4. Ideal amount of children
Vaselesa [24]

Answer:

3

Step-by-step explanation:

Formula:

\frac{sum of all numbers added together}{total amount of numbers}

\frac{21}{7} = 3

3 0
2 years ago
in how many ways can alice distribute 12 apples to 3 children? each child has to have AT LEAST 1 apple.
elena-s [515]

Answer:

I think it would be 4 apples for each of them !

Step-by-step explanation:

its division. you had to do 12 ÷ 3

5 0
3 years ago
Read 2 more answers
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