A cognitive psychologist is investigating selective attention using a computerized visual search task. The reaction times (measured in centiseconds) for a sample of 10 participants are recorded below:
35,42,29,35,47,31,42,53,38,39 35, 42, 29, 35, 47, 31, 42, 53, 38, 39 35,42,29,35,47,31,42,53,38,39What is the median reaction time for this group of participants?
38.538.538.5
39.139.139.1
42.042.042.0
38.038.038.0