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Can you modify the codes so that you can sample an unfair coin? outcome (+1 (or head) with probability p -1 (or tail) with probability 1 - p 1. Modify the function cointoss (). It needs to take the probability parameter as an argument. function outcome = cointoss (p) = 2. Modify the script exp_cointoss.m accordingly. 1. Write a function roll_a_die() that gives a random outcome between 1 and 6 from rolling a (fair) die. 2. Write a script that samples a large number of random outcomes and draw the histogram. function outcome = cointoss () u = rand; if u