38 of 50 The expected value of rolling a single die is 3.5. What is the expected value of rolling a pair of dice and what is the rationale for the answer? This cannot be answered without knowing the values of P(x) for each of the 36 possible combinations of numbers. The expectation of the sum of two dice is the sum of the expectations of each die, which is 3.5 + 3.5 = 7 O The sum of x(Px) is equal to 3.5. This cannot be answered without knowing whether the dice rolls are independent events or dependent events. 39 of 50 Decide whether the experiment is a binomial experiment. Elsa records the number of yellow marbles she gets during ten trials of randomly pulling a marble from a bag filled with marbles of various colors. The random variable represents the number of yellow marbles. not a binomial experiment binomial experiment 40 of 50 If 15% of adults in a certain country work from home, what is the probability that no more than 60 out of a random sample of 500 adults will work from home? O.97 O.03 O.003 O.097 41 of 50 A fair coin is flipped twice to see how many heads appear. The random variable is O {HH, HT, TH, TT} 0.5 the number of heads observed