Billy has a box of marbles. the color and numbers of the marbles are 1 red, 42
green, 34 blue, and 27 black. how likely is it that he will randomly pick a red
marble?
a) as likely to happen as not
b) unlikely
o
c) certain
o
d) likely

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.