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3 years ago

7

In a batch of 140 water purifiers, 28 were found to be defective. What is the probability that a water purifier chosen at random

will be defective?

1 answer:

Nat2105 [25]3 years ago

7 0

Answer:

20%

Step-by-step explanation:

28 / 140 = 0.20 which is 20%

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The slope-intercept form:

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m - slope

b - y-intercept

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Substitute the coordinates of the point (1, 1) to the equation:

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$1=-3+b$ <em>add 3 to both sides</em>

$4=b\to b=4$

<h3>Answer: y = -3x + 4</h3>

We have:

$f(4)=1\to(4,\ 1)\\f(8)=4\to(8,\ 4)$

Substitute:

$m=\dfrac{4-1}{8-4}=\dfrac{3}{4}$

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