why 0 factorial is equal to 1? Why 0!=1?

Example 4 If x has the probability density function. Find the expected value of the random variable

Example 3 If x is the number of faces rolled with a balance die. Find the expected value of the r.v

Example 2 Certain coded measurement of the pitch diameter of threads of a fitting have the ...

Example 1 Find the expected value of r.v x having the probability distribution for x=−1,0,1,3 .

Mathematical expectation of a random variable g(x)

Mathematical expectation of a discrete and continuous random variable x. #statistics4all

Given that y=(1-2×)/(4×-3), find the value of x for which y is undefined. #subscribe #mathshorts

If (x/(a+1))+y/b=1. Make y the subject of the relation #shortvideo #shorts #viral

Make w the subject of the relation (a+bc)/(wd+f)=g. #subscribe #shortsyoutube #maths #relations

The roots of a quadratic equation are -1/2 and 2/3. Find the equation. #subscribe #maths #shortvideo

Formation of Quadratic Equations using Sum and Products of roots of quadratic equation #subscribe

Rules of Surd #surdsandindices #subscribe #shortvideo #mathformula #maths