Penny measured the time that it took her rat to run through a maze. She conducted the experiment 10 times and recorded the set of data below.Times: 67 s, 69 s, 68 s, 66 s, 78 s, 70 s, 67 s, 69 s, 68 s, 66 sWhich time is most likely an outlier?

Most of the recorded times are clustered between 66 and 70 seconds. The 78-second time is much farther from that cluster than any other measurement, so it is most likely the outlier. The correct choice is 78 s.

AI-written and checked against the verified answer.