A Petri dish contained 50 bacteria at 8:00am the number of bacteria triples each hour. After what time will there be at least 1,
350 bacteria in the Petri dish?
1 answer:
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Answer:
a) 0.900
b) 0.400
Step-by-step explanation:
Let I = households getting internet
T = households getting television
Then I = 60%
and T = 80%
(Households that get both services)
a) Households getting at least one service,
b) Those getting internet only =
Those getting television only =
Probability of getting exactly one service = 0.1 + 0.3 = 0.400