Asingle die is rolled twice. the 36 equally-likely outcomes are shown to the right. find the probability of getting first an odd number and second an even number.

The probability of getting first an odd number and second an even number IS 0.25

Step-by-step explanation:

Lets define the following events:

A: Probability of obtaining an odd number first time

B: Probability of obtaining an even number second time

and probability of ane events is defined as

P (Event) = number of ways event may happen / number of possible outcomes

Then:

P(A) = 3/ 6 =1/2

because we can have 1, 3,5 so event A occurs and there are six possible outcomes (1,2,3,4,5,6)

P(B) = 3/ 6  =1/2

because we can have 2, 4,6 so event b occurs and there are six possible outcomes (1,2,3,4,5,6)

the probaility that both events occur one after the other is

P(A and B) = P(A)*P(B) = 1/2* 1/2 = 1/4 = 0.25

This applies only if the chances that event B happening doesnt change after A happens. As A event is independent from B event, we can do this multiplication.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540