Samples of laboratory glass are in small, light packaging or heavy, large packaging. Suppose that 2% and 1%, respectively, of th
e sample shipped in small and large packages, respectively, break during transit. If 60% of the samples are shipped in large packages and 40% are shipped in small packages, what proportion of samples break during shipment?
1 answer:
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Answer:
3
Step-by-step explanation:
C
the sum to infinity of a geometric series =
where a is the first term and r the common ratio
= = 81 × 3 = 243