<span>In many cases, it is appropriate to summarize a group of independent observations by the number of observations in the group that represent one of two outcomes, this means that there are two probably outcome for a problem or situation. Below are the answer to the above question:
1. </span>A quarter is flipped 3 times to see how many times tails comes up on the coin. 2. Three marbles are pulled from a bag of 10 green and 10 blue marbles without replacing to see how many times a green marble is pulled.