Question

Pranalee was partising for a 100m running race she run 100m distance 20 times the time requred in second for each attept was as follows find the mean

Answer 1

Answer:

Step-by-step explanation:

heya friends

here is your 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