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Veseljchak [2.6K]
4 years ago
11

Thirty six pencils are packed in three boxes. How many pencils are packed in five boxes

Mathematics
1 answer:
Alex777 [14]4 years ago
6 0

Answer: 30

Step-by-step explanation:

6x5

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The probability that a lab specimen contains high levels of contamination is 0.10. A group of 5 independent samples are checked.
zhannawk [14.2K]

Answer with Step-by-step explanation:

In case of Bernoulli trails

The probability that a random variable occurs 'r' times in 'n' trails is given by

P(E)=\binom{n}{r}p^r(1-p)^{n-r}

where

'p' is the probability of success of the event

Part a)

probability that no contamination occurs can be found by putting r = 0

Thus we get

P(E_1)=\binom{5}{0}0.1^0(1-0.1)^{5}=0.5905

part b)

The probability that at least 1 contamination occurs is given by

P(E)=1-(1-p)^{n}

Applying values we get

P(E_2)=1-(1-0.1)^{5}=0.4096

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3 years ago
What are the SOLUTIONS for (x+5)(x-3)=0 ?
makvit [3.9K]
X = -5
x = 3
The answer is "b"

8 0
3 years ago
Can x be a fraction? Explain.
lesya692 [45]

Answer:

yes

Step-by-step explanation:

x is a unknown variable so it can be anything. it can be a number, fraction, integers and more.

4 0
4 years ago
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Answer: I'm not to sure about this question its kind of confusing.

Step-by-step explanation:

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