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scZoUnD [109]
2 years ago
15

The probability of an event is P(A) = 0.05 What is the complement of P(A)?

Mathematics
1 answer:
kirill115 [55]2 years ago
8 0

Probability is the likelihood or chance that an event will occur. The complement of the probability will be 0.95

<h3>What is probability?</h3>

Probability is the likelihood or chance that an event will occur. Mathematically:

Probability = expected outcome/total outcome

Given that the probability of an event is P(A) = 0.05, the complement will be expressed as:

P'(A) = 1 - P(A)
P'(A) = 1 - 0.05
P' (A) = 0.95

Hence the complement of the probability will be 0.95

Learn more on probability here: brainly.com/question/24756209

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The weights of 40 students were recorded. If the 75th percentile of
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In the given question, there are numerous information's already provided. It is important to note then down first. With the help of those given information's the required answer can be easily reached.
Percentage of students that weighed 140 pounds = 75 percent
Then
Percentage of students that weighed more than 140 pounds = (100 - 75) percent
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Total number of students that were weighed = 40 students
Total number of students that weighed more than 140 pounds = (25/100) * 40
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                                                                                                    = 10 students
So the number of students that weighed more than 140 pounds is 10. So the correct option in regards to the given question is option "1".
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