Mathematics · Foundation

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Finding the averageRunning
Data balancing board. Fifth innings score at 83 runs. Average so far 44.56 runs, Target average 36 runs. Currently average so far is over by 8.56 runs.TUNINGMEAN 64.383 RUNS
t = 0.0s

Average so far

44.56runs

Target average

36runs

83 runs

Data balancing board. Fifth innings score at 83 runs. Average so far 44.56 runs, Target average 36 runs. Currently average so far is over by 8.56 runs.

What has to balancexˉ=∑xn\bar{x} = \frac{\sum x}{n}

What is happening

You arrive at a cricket coach picking an opener on batting average.

Four innings are on the sheet — 32, 48, 21 and 39 — and the selector wants a five-innings average of exactly 36. The fifth innings has not been played.