Psychology homework help. Consider a random experiment “tossing un-fair coin two times” where the probability of head for the unfair coin is 0.4. Let random variable X be the number of heads. That is, X follows the binomial distribution with parameters n = 2, ?=0.4.(1) Calculate P(X?1).(2) Calculate P(X>1).(3) Find the expected value of X.(4) Find the standard deviation of X.
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