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Alborosie
3 years ago
11

Plz help me so I don’t fail

Mathematics
2 answers:
Thepotemich [5.8K]3 years ago
7 0

Answer:

B

Step-by-step explanation:

below 0 is negative

so -15

Leviafan [203]3 years ago
5 0

<em>In</em><em> </em><em>My</em><em> </em><em>Knowledge</em><em> </em>

<em>Option</em><em> </em><em>B</em><em>.</em><em> </em><em>-15</em><em>°</em>

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James has to fill 40 water bottles for the team. Each bottle holds 500 millimeters of water. How many liters of water does James
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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

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2 years ago
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AleksandrR [38]
I would say your answer is false because my mom works on houses and she never does this....

Hope I Helped (:
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