Asked by Kalee
A flashlight has 8 batteries, 2 of which are defective. If you select 2 batteries, find the probability that
You select at least 1 good battery
You select at least 1 good battery
Answers
Answered by
PsyDAG
Probability of getting either one or two good batteries.
Either-or probabilities are found by adding the individual probabilities.
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
P(1 good) = 6/8 * 2/7 = ?
P(2 good) = 6/8 * 5/7 = ?
Either-or probabilities are found by adding the individual probabilities.
If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.
P(1 good) = 6/8 * 2/7 = ?
P(2 good) = 6/8 * 5/7 = ?
Answered by
baraa
0.75
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