18) Determine whether the distribution represents a probability distribution. If not, identify any requirements that are not satisfied. x P(x) 1 0.2 2 0.2 3 0.2 4 0.2 5 02 19) Decide whether the experiment is a binomial experiment. Selecting five cards, one at a time without replacement, from a standard deck of cards. The random variable is the number of red cards obtained. 20) The probability that an individual is left-handed is 0.17. In a class of 55 students: What is the probability of : (a) finding five left-handers exactly ? (b) finding at least one student is left-handers ? (c) The Expectation, Variance and Standard deviation of random variable X of the number of left handed student