Pranalee was practising for a 100 m running race. She ran 100 m distance 20
times. The time required, in seconds, for each attempt was as follows.
18 , 17 , 17 , 16 , 15 , 16 , 15 , 14 , 16 , 15 ,15 , 17 , 15 , 16 , 15 , 17 , 16 , 15 ,
14, 15 Find the mean of the time taken for running.
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Answer:
13.3
Step-by-step explanation:
18+17+17+16+15+16+15+14+16+15+15+17+15+16+15+17+16+15=266
266÷20=13.3
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