With reference to Example 3.3, find the probability distribution of Y, the difference between the number of

Question:

With reference to Example 3.3, find the probability of Y, the difference between the number of heads and the number of tails obtained in four tosses of a balanced coin.
Example 3.3
Find a formula for the probability of the total number of heads obtained in four tosses of a balanced coin.
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...