(d) 10cm(0 sm18. Case Study Based-2A 110 m hurdle race is organisedfor

1.	(d) 10cm(0 sm18. Case Study Based-2A 110 m hurdle race is organisedfor a group of 150 athletes.The time, in seconds, taken bythe athletes to run the race aretabulate below:Time (in sec) 13.8 -14.8 -14.0- 14.2- 14.4 14.6-14.0 14.215.014.4 14.6 14.8No. of athletes 24571 48 20(1) What is the class mark of class intervalcorresponding to frequency 48?(a) 14.5(b) 14.7(C) 14.75(d) 14.65(ii) What will be the upper limit of the medianclass?(a) 14.4 (b) 14.2 (C) 14.8 (d) 14.6(iii) Estimate the median time taken by an athleteto finish the race.(a) 14.76 sec(b) 14.58 sec(c) 14.42 sec(d) 14.6 sec(iv) The mean time taken by an athlete is 14.6 sec,then the mode of the given data is:(a) 14.54 sec(b) 14.64 sec(c) 14.94 sec(d) 14.44 sec(V) How many athletes finished the hurdle race inless than 14.6 seconds?(a) 71(b) 76(C) 82(d) 91
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(d) 10cm(0 sm18. Case Study Based-2A 110 m hurdle race is organisedfor a group of 150 athletes.The time, in seconds, taken bythe athletes to run the race aretabulate below:Time (in sec) 13.8 -14.8 -14.0- 14.2- 14.4 14.6-14.0 14.215.014.4 14.6 14.8No. of athletes 24571 48 20(1) What is the class mark of class intervalcorresponding to frequency 48?(a) 14.5(b) 14.7(C) 14.75(d) 14.65(ii) What will be the upper limit of the medianclass?(a) 14.4 (b) 14.2 (C) 14.8 (d) 14.6(iii) Estimate the median time taken by an athleteto finish the race.(a) 14.76 sec(b) 14.58 sec(c) 14.42 sec(d) 14.6 sec(iv) The mean time taken by an athlete is 14.6 sec,then the mode of the given data is:(a) 14.54 sec(b) 14.64 sec(c) 14.94 sec(d) 14.44 sec(V) How many athletes finished the hurdle race inless than 14.6 seconds?(a) 71(b) 76(C) 82(d) 91

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