The probability that it is friday and that a student is absent is 0.03. since there are five school days in a week, the probability that it is friday is 0.2. what is the probability that a student is absent given that today is friday?

0.15

Step-by-step explanation:

We have been given that the probability that it is Friday and that a student is absent is 0.03. Since there are five school days in a week, the probability that it is Friday is 0.2.

To solve the given problem, we will use conditional probability formula.

, where,

P(B|A) = Probability of event B given A.

P(A and B) = Probability of event A and B.

P(A) = Probability of event A.

Therefore, the probability, that a student is absent given that today is Friday, would be 0.15.

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

what are the statments

step-by-step explanation: