A factory makes car batteries. The probability that a battery is defective is 1/14. If 400 batteries are tested, about how many
1 answer:
Answer:
28.6, that is, about 29 are expected to be defective
Step-by-step explanation:
For each battery, there are only two possible outcomes. Either it is defective, or it is not. The probability of a battery being defective is independent of other betteries. So the binomial probability distribution is used to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:
The probability that a battery is defective is 1/14.
This means that
400 batteries.
This means that
How many are expected to be defective?
28.6, that is, about 29 are expected to be defective
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Option C (Same as Option D)
<h2>Explanation:</h2>Option C and D are the same, so I'll assume you made a mistake when writing this question. However, let's figure out which of the following equations has a slope of -2 and passes through the point (2,3):
A. y = -2x + 6
B. y - 3 = -2(x + 2)
C. y = -2x + 7
<em />
<em>All these equations have a slope of -2.</em>
FROM OPTION A:
Since then the line doesn't pass through the point (2, 3)
FROM OPTION B:
Since then the line doesn't pass through the point (2, 3)
FROM OPTION C:
Since then the line passes through the point (2, 3)
<em>Finally, the equation that has a slope of -2 and passes through the point (2,3) is Option C (Same as Option D)</em>
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<h2>Learn more:</h2>x and y intercepts of a line: brainly.com/question/13770925#
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