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laiz [17]
3 years ago
9

Can someone please help

Mathematics
1 answer:
sveta [45]3 years ago
7 0
Some of the problems are in scientific notation, which if you don't know how to do, I will try to explain, when you see for example 1 x 10^3, what it is saying is basically 1 x 10 x 10 x 10 so in that case 1,000, simple trick is to look at what ever number is in the top right, then add that many zeroes. So this is most likely supposed to be a division problem. if you need more help message me.
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Answer:

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The formula for the probability of an exponential distribution is:

P(x < b) = 1 - e^(b/3)

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Therefore, using the probability table, you find that the corresponding probability is:

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<em></em>

Therefore,  the probability that at least half of them need to wait more than 10 minutes is <em>0.0031</em>.

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3 years ago
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