Answer:
<em>Find the probability of success in a single trial and then think about the nature of the problem (when do we stop). </em>
Step-by-step explanation:
Observe that in the single trial, we have (8 4) possibilities of choosing our set of balls. If we have chosen two white balls and two black balls, the probability of doing that is simply
p=(4 2)*(4 2)/(8 4)
This is well know Hyper geometric distribution. Now, define random variable X that marks the number of trials that have been needed to obtain the right combination (two white and two black balls). From the nature of the problem, observe that X has Geometric distribution with parameter p that has been calculated above. Hence
P(X = n) = (1— p)^n-1 *( p )
<em>Find the probability of success in a single trial and then think about the nature of the problem (when do we stop). </em>
Answer:

Step-by-step explanation:
we know that
The equation of the line into slope intercept form is equal to

where
m is the slope
b is the y-coordinate of the y-intercept
In this problem we have


Substitute

Answer:
Solutions:


Step-by-step explanation:

Expanding the factored form:


Factoring the second-degree polynomial:

This is true for

Answer:
A significant figure is the first digit in a number that isn't zero. You round to this.
Step-by-step explanation:
E.g. 1959302 to 1 Sig Fig = 2000000
You round to the first figure that isn't zero, which is one
E.g 0.000001373 to 1 Sig Fig = 0.000001 because that 1 is the first digit that isn't zero
Question incomplete
Answered by Gauthmath must click thanks and mark brainliest