Dependent events
A and B are dependent events. This means that the outcome of B affects the outcome of A.
We have that "the probability that A occurs given that B occurs" is symbolized by
P(A|B)
This is what we want to find.
We have that:
P(A): probability that event A occurs.
P(A) = 1/4
P(B): probability that event B occurs.
P(B) = 8/9
P(A&B): probability that both events A and B occurs.
P(A&B) = 1/5
We have that:
Replacing in the equation:
Since,
Then
<h2>
Answer: 9/40</h2>
I think for the first one its always occur along plate boundaries, and for the second one its season of the year.
There are 6 sides of the die, let us say that side 1 is
S1, side 2 is S2 and so on.
Assigning a value of 3 to S1, so the probabilities are:
Probability
S1 = 3 3/8
S2 = 1 1/8
S3 = 1 1/8
S4 = 1 1/8
S5 = 1 1/8
S6 = 1 1/8
total = 8
The combinations that the sum of the two rolls will be 4
are:
S1 and S3
S3 and S1
S2 and S2
So the total probability is:
P = (3/8) * (1/8) + (1/8) * (3/8) + (1/8) * (1/8)
P = 0.1094 = 10.94%
So there is about 0.1094 or 10.94% probability that the
sum will be 4.
It is arleady in scientific notation, you can write it like that : 3.92400x10^5 or 0.392400x10^6 or 0.392400K (for Kilo = 10^6)
First you have to figure that it sounds confusing but. What you have to do is that 171 is 189 LESS than from one place to another. So just do : 189-171= 18. And then you know 18.
