13. The traffic police recorded the speed (in km/hr) of 10 motorists as 47, 53, 49,60, 39,42, 55, 57, 52, 48. Later on an error in recording instrument was found. Find thecorrect overage speed of the motorists if the instrument recorded 5 km/hr less ineach case.hor is excluded, their mean is 25. Find the

13. The traffic police recorded the speed (in km/hr) of 10 motorists a

1.	13. The traffic police recorded the speed (in km/hr) of 10 motorists as 47, 53, 49,60, 39,42, 55, 57, 52, 48. Later on an error in recording instrument was found. Find thecorrect overage speed of the motorists if the instrument recorded 5 km/hr less ineach case.hor is excluded, their mean is 25. Find the
Answer» Average=[(47+53+49+60+39+42+55+57+52+48)+5(10)]/10502+50/10552/10=55.2