Question

plzzzz answer it fast ..............................................................................
the mean score of a cricketer in five innings is 56.8. if in four innings he scores 56,54,58, and 70 runs, what was his score in the last inning

Answer 1

Given:

mean score = 56.8

no. of innings = 5

let his score in last inning be x

his score in 4 innings = 56 , 54 , 58 and 60 runs respectively.

=> mean = total no. of runs/no. of innings

=> 56.8 = (56+54+58+60+x)/5

=> 56.8×5 = 228+x

=> 284 = 228+x

=> x = 284-228

=> x = 56

so his score in last inning is 56 runs

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Answer 2

Answer:

Step-by-step explanation:

Arithmeticmean:

sum of all observations/no of observations

56+54+58+70+x/5

56.8×5=238 +x

284-238=x

X=46

Check :284/5 = 56.8.