Question

2. 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 times taken for runnin9. nD e IM IWrite the​

Answer 1

Answer:

mean=  Sum of observations/ Number of observation

18+17+17+16+15+16+15+14+16+15+15+17+15+16+15+17+16+15+14+15                        

                                                  20

= 314

   20

Mean= 15.7

Hope it helps !