Le Roy knows that he will make an A, B, C, or D (in his English class). If he makes an A or B, his parents will give him a choice of his favorite video game or $20 cash. If he makes a C or D, he will have to either complete an extra credit assignment for the class or work with a tutor to review the material. Which represents the sample space for the possible outcomes of LeRoy's English class?

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.