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Mathematics Clinic => Statistics => Topic started by: Bernana on Jan 16, 2020

Title: Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds ...
Post by: Bernana on Jan 16, 2020

Smith is a weld inspector at a shipyard.  He knows from keeping track of good and substandard welds that for the afternoon shift 5% of all welds done will be substandard.  If Smith checks 300 of the 7500 welds completed that shift, what is the probability that he will find between 10 and 20 substandard welds?
◦ 0.6377
◦ 0.4066
◦ 0.2033
◦ 0.8132

Title: Smith is a weld inspector at a shipyard. He knows from keeping track of good and substandard welds ...
Post by: mk6555 on Jan 16, 2020

0.8132