#### Answer

$0.684$

#### Work Step by Step

We can use the multiplication rule: P(at least one positive):1-P(no one of them are positive) =$1-(1-0.134)^{8}=0.684$ This probability is high, so they should make other tests.

Published by
Pearson

ISBN 10:
0321836960

ISBN 13:
978-0-32183-696-0

$0.684$

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