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Harrizon [31]
2 years ago
15

The probability all of the students in this class will be present and on time is 3/10. The probability all of the students are p

resent is 2/5. What is the probability that everyone is on time given that everyone is present? Give your answer as a simplified fraction.​
Mathematics
1 answer:
cestrela7 [59]2 years ago
7 0

Answer:

3/4

Step-by-step explanation:

A: students present
B: students on time

P(all students present and on time) = P(A and B) = 3/10
P(all students present) = P(A) = 2/5

P(A and B) = P(A).P(B|A) where P(B|A) is the probability of everyone being on time given that everyone is present

So P(B|A) = P(A and B) /P(A) = 3/10 ÷ 2/5 = 3/10 * 5/2 = 15/20 which can be reduced to 3/4 by dividing numerator and denominator by 5

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Equation of the line is a way to represent the a line in a equation or algebraic from which is the set of the line thorough witch the line passes.

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The point through which the line passes are (2, 8) and (4, 12).

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<h3>Equation of the line</h3>

Equation of the line is a way to represent the a line in a equation or algebraic from which is the set of the line thorough witch the line passes.

The standard form of the equation of the line can be given as,

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Where (x_1,y_1) and (x_2,y_2) are the points through which the line passes.

Thus the equation of the line which passes through the points (2, 8) and (4, 12) can be given as,

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Hence the option 3 is the correct option.

Learn more about the equation of the line here;

brainly.com/question/2564656

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