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3 years ago

Y = f(x) = 2x Find f(x) when x = 1. Enter the correct answer. NEED ANSWER ASAP

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

5 0

Replace x in the equation with 1 and solve.

F(x) = 2x

X = 1

F(1) = 2(1) = 2

The answer is 2

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mario62 [17]

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3 years ago

Suppose 10000 people are given a medical test for a disease. About1% of all people have this condition. The test results have a

Alina [70]

Answer:

The percent of the people who tested positive actually have the disease is 38.64%.

Step-by-step explanation:

Denote the events as follows:

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N = the test result is negative

Given:

$P(X)=0.01\\P(P|X^{c})=0.15\\P(N|X)=0.10$

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$P(P|X)=1-P(P|X^{c})=1-0.15=0.85$

Compute the probability of a positive test result as follows:

$P(P)=P(P|X)P(X)+P(P|X^{c})P(X^{c})\\=(0.85\times0.10)+(0.15\times0.90)\\=0.22$

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The percentage of people having the disease given that he/she was tested positive is, 0.3864 × 100 = 38.64%.

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3 years ago