If X is a random variable representing the number of children that end up having light-colored eyes, then X follows a binomial distribution with success probability p = 0.25 and number of trials n = 5.
The variance of a binomial distribution with these parameters is n p (1 - p), so the variance in this case would be
5 • 0.25 • (1 - 0.25) = 0.9375 ≈ 0.9
X=-5.5 the other zero would be x=-0.5 but that’s not an option.
Answer and Step-by-step explanation:
<u>C and D is the answer.</u>
It needs a lot of mass so that it can collapse on itself to form a black hole, and when it dies, it also collapses on itself, forming a black hole.
A is incorrect because the mass of our sun hasn't made it to collapse, and it still has some billions of years before the mass increases.
B is incorrect because the hydrogen needs to be depleted in order for the sun/star to start the nuclear process.
<em><u>#teamtrees #PAW (Plant And Water)</u></em>
What's the sample space? Are we talking about rolling a die or what?
Anyway, if we call the probability 
, then 
So, the expression becomes
