answer. 1. If two coins are tossed once, which is NOT a possible value of the random variable for the number of heads? A. O B. 1 C. 2 D. 3 2. Which of the following is a discrete random variable? A. Length of wire ropes B. Number of soldiers in the troop C. Amount of paint used in repainting the building D. Voltage of car batteries 3. Which formula gives the probability distribution shown by the table? A. PX=X B. PX=1/X C. PX=X/3 D. PX=X/5 4. How many ways are there in tossing two coins once? A. 4 B.3 C. 2 D. 1 5. It is a numerical quantity that is assigned to the outcome of an experiment A. random variable B. variable C. probability D. probability distribution
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