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Add a fixed box mass and retain both at-least-one methods
Pineapple masses in a large warehouse are normally distributed with mean 1.52 kg and standard deviation 0.070 kg. Six randomly chosen pineapples are packed in a box of mass 2.15 kg. Find the probability that the filled box has mass below 11.2 kg.
For 3 randomly chosen filled boxes, find the probability that at least 1 has mass below 11.2 kg.
[2005/II/23]
CJC · Discussion · Question 9
The packaging here is a fixed mass; only the six independent fruit masses contribute variance.