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hichkok12 [17]
3 years ago
7

How many solutions does this system for equations have ? PLZ HELP ASAP !

Mathematics
1 answer:
castortr0y [4]3 years ago
6 0

Answer:

Infinitely many solutions

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-3 + -3 = 0
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Step-by-step explanation:

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IrinaVladis [17]

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an = 80. 2^(n-5)

Step-by-step explanation:

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3 years ago
A drug company conducts trials of a new vaccine for a rare but usually fatal disease. The company creates a
GalinKa [24]

Answer:

What can be said about the model are;

1) The company predicts 4 failures before success

2) Each trial is independent

3) The probability is the same for each trial

4) Success is defined as preventing the disease

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The probability of success for the vaccine, p = 0.2

Therefore, the probability that the vaccine is effective and prevents the disease = 0.2

A geometric distribution probability of success is given by the following formula;

P(X = x) = p × q⁽ˣ⁻¹⁾

The expected value, E(Y) = 1/p

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Where;

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q = 1 - p

∴ The e

The geometric model criteria are;

a) Each trial can only have one of two outcomes success or failure

b) The probability of success for each trial is fixed

c) The geometric distribution is concerned with finding how many trials are required to get one success

d) The trials are independent

Therefore, we have;

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2) The trials are independent

3) Each trial has an equal probability

4) Success is defined by the effectiveness of the vaccine in the prevention of the disease

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3 years ago
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