Pranalee was practising for a 100 m running race. She ran 100 m distan

1.	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 , 15Find the mean of the times taken for running.
Answer» Answer: the mean of the TIMES TAKEN for RUNNING. = 15.7 sec Step-by-step explanation: 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 running. Total NUMBER of Data = 20 Sum of times = 18 + 17 + 17 + 16 + 15 + 16 + 15 + 14 + 16 + 15 + 15 + 17 + 15 + 16 + 15 + 17 + 16 + 15 + 14 + 15 Sum = 314 Mean = Sum of all data / numbers of dat => Mean = 314/20 = 15.7 the mean of the times taken for running. = 15.7 sec

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 , 15Find the mean of the times taken for running.

Answer»

Answer:

the mean of the TIMES TAKEN for RUNNING. = 15.7 sec

Step-by-step explanation:

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 running.

Total NUMBER of Data = 20

Sum of times = 18 + 17 + 17 + 16 + 15 + 16 + 15 + 14 + 16 + 15 + 15 + 17 + 15 + 16 + 15 + 17 + 16 + 15 + 14 + 15

Sum = 314

Mean = Sum of all data / numbers of dat

=> Mean = 314/20 = 15.7

the mean of the times taken for running. = 15.7 sec

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