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The average score (or arithmetic mean of his score) is the sum of all values divided by the number of values.

Sum of all values = 120 + 144 + 143 + 111 + 167 = 685 : Number of values = 5

Average Score = 685 ÷ 5 = 137.

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Q: What is John's average score given that John's bowling scores were 120 144 143 111 and 167?
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