in class we have just learned about discrete and continuous random variables. however again i still dont know what to do.
the problem ask
let X represent the difference between the number of heads and the number of tails obtained when a coin is tossed "n" times. What are the possible values of X?
i know this is probably a discrete random variable because u cant have non integers numbers for tosses and a difference.
this is how i think its done but its probably wrong cause it leads nowhere
X= H(n)-T(n)
X= n, n-1, n-2...-n infinity because the max value of X can only be N (assuming n heads and 0 tails) and the lowest it can be is is -n (0 heads and n tails)
please help
the problem ask
let X represent the difference between the number of heads and the number of tails obtained when a coin is tossed "n" times. What are the possible values of X?
i know this is probably a discrete random variable because u cant have non integers numbers for tosses and a difference.
this is how i think its done but its probably wrong cause it leads nowhere
X= H(n)-T(n)
X= n, n-1, n-2...-n infinity because the max value of X can only be N (assuming n heads and 0 tails) and the lowest it can be is is -n (0 heads and n tails)
please help