Question: Problem 3 (10 marks in total). You are given the following statistical distribution, which reports the duration in seconds (ti) of the occurrence of

Problem 3 (10 marks in total). You are given the following statistical distribution, which reports the duration in seconds (ti) of the occurrence of some phenomenon. Observation 1 2 3 4 5 6 7 8 9 10 Total number ti 2 20 15 5 48 194 443 36 700 t2 (secs) 4 400 225 25 16 64 37 636 196 249 9 36 234 664 a) (2 marks) Compute the average duration. Specify the unit. b) (3 marks) What is the standard deviation of the duration of the phenomenon? Specify the unit.

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