Quick Check
Match
Inequality and Interval Notatlor
Match the solution set given in inequality notation with the solution set given in interval notation.
x 27.8
(7.8,)
X>7.8
(-0, 7.8]
x <7.8
[7.8,-)
X57.8
(-0, 7.8)

Use set buikder notation to represent the following set: {, -2, -1, 0}

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.

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?