Students are voting on the color of t-shirts to wear on their field trip. there are 160 students–65 boys and 95 girls–going on the field trip. a random sample of students is chosen. surveying the random sample produced a representative sample of the population. which was most likely true of the representative sample?

the representative sample contained all 160 students.

the representative sample contained more boys than girls.

the representative sample contained more girls than boys.

the representative sample contained an equal number of boys and girls.

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.