1.

last9observationsis18,findthe9thobservation.25. A cricketer has a mean score of 58 runs in innings. Find out how many runs are to be securedbyhim in the 10th inning to raise the mean score to 61.

Answer»

Meanscore of 9 innings is 58total runs in 9 innings = 58*9 = 522runs should scored in 10th innings to mean score 61 be X

61=522+X/10610=522+XX= 88



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