а. At least one selected firm is not local. b. All three selected firms are local.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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6.
A corporation has a poll six firms, four of which are local, from which it can purchase certain
supplies. If three firms are randomly selected without replacement, find the probability that
а.
At least one selected firm is not local.
b.
All three selected firms are local.
Transcribed Image Text:6. A corporation has a poll six firms, four of which are local, from which it can purchase certain supplies. If three firms are randomly selected without replacement, find the probability that а. At least one selected firm is not local. b. All three selected firms are local.
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