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.

option a, c,d are correct.

step-by-step explanation:

from the given figure, it is given that z is equidistant from the sides of the triangle rst, then from triangle tzb and triangle szb, we have

tz=sz(given)

bz=zb(common)

therefore, by rhs rule,δtzb ≅δszb

by cpctc, sz≅tz

also, from δctz and δasz,

tz=sz(given)

∠tcz=∠saz(90°)

by rhs rule, δctz ≅ δasz, therefore by cpctc, ∠ctz≅∠asz

also,from δasz and δzsb,

zs=sz(common)

∠zbs=∠saz=90°

by rhs rule, δasz ≅δzsb, therefore, by cpctc, ∠asz≅∠zsb

hence, option a, c,d are correct.