Let n be a positive integer. We sample n numbers a1, a2,..., an from the set {1,...,n} uniformly at random, with replacement. We
say that picks i and j with i < j are a match if ai = aj.
What is the expected total number of matches?
What is the expected total number of matches?
1 answer:
You might be interested in
The equation for resolving couples will come in place
Using the unit vectors by i and j along the x-axis and the y-axis you'll express it as a Cartesian vector.
<h3>Couple moment and Cartesian vector</h3>
Couple moment:This looks at the product of the forces acting on a body( in this context a steering wheel ) by the perpendicular distance that exist amidst the forces.
Cartesian vector:this is the representation of unit vectors by i and j along the x-axis and the y-axis, respectively.
Therefore, in calculating the <em>couple</em> moment t acting on the steering wheel, the equation for resolving couples will come in place
Using the unit vectors by i and j along the x-axis and the y-axis you'll express it as a Cartesian vector.
More on Cartesian Co-ordinate