Question

Actual times​ (in seconds) recorded when statistics students participated in an experiment to test their ability to determine when one minute​ (60 seconds) had passed are shown below. Find the​ mean, median, and mode of the listed numbers. 55  50  74  61  67  60  47  47

Answer 1

• mean = (55+50+74+61+67+60+47+47) / 8

= 57.625

Increasing order - 47 47 50 55 60 61 66 74 , n=8

• median = [ (n/2)^th obs. + (n/2 + 1)^th obs. ] / 2

= [55+60] / 2

= 57.50

• mode - the value that occurs most often.

mode = 47