Math
posted by Anonymous .
Four different brands of 18 ounce peanut butter were randomly selected from a grocer's shelves; their contents were weighed. Use these results to determine which company fills its jars more consistently?
Answer
Bama: 18.11, 17.98, 18.03, 17.99, 17.95
Skippy: 18.03, 17.96, 17.89, 17.95,17.98
Jiff: 18.02, 18.01, 17.99, 18.01, 17.99
Hytop: 17.95, 18.05, 17.98, 18.01, 18.02

Bama: 18.012 Average; + 0.012
Skippy: 17.962 Average;  0.338
Jiff: 18.004 Average; + 0.004
Hytop: 18.002 Average; + 0.002
While Hytop's average is closest to 18, Jiff's weights are all within 0.1% of the advertised weight.
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