ericb4877 ericb4877
  • 08-03-2024
  • Mathematics
contestada

A quality control inspector has drawn a sample of 12 light bulbs from a recent production lot. Suppose that 90% of the bulbs in the lot are defective. What is the standard deviation of the number of d?
a. 0.37
b. 0.49
c. 1.20
d. 1.73

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