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Murrr4er [49]
1 year ago
13

The factory makes light bulbs the probability that a bulb is defective is 1/15 if 300 light bulbs are tested about how many are

expected to be defective
a 20

b 66

c 15

d 30
Mathematics
2 answers:
irga5000 [103]1 year ago
8 0
defective : working = 1/15 ( x20 ) 20/300
so the answer is 20 light bulbs
NARA [144]1 year ago
8 0
A) you can make a ratio of 1/15 = x/300

300x1 = 300

300/15 = 20
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