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faust18 [17]
3 years ago
13

The parade had 127 floats. Thatis 34 fewer floats than last year. How many floats were in the parade last year?

Mathematics
1 answer:
vampirchik [111]3 years ago
5 0
You have to add 34 to 127, so the answer would be 161
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The probability that aperson living in a certaincity owns a dog is estimated to be 0.3. Find the probabilitythat the tenth perso
allochka39001 [22]

The probability that the tenth person randomly interviewed in that city is the fifth one to own a dog = 0.051

Given,

Consider the interview of a person is a trial.

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Let the random variable X represent the number of persons to be interviewed to get 5 dog owner: in other words, to get 5 successors.

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P(X =x ) = b(x: k, p) = [(x-1)(k-1)] p^kq^r^-^k

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Now, Lets find the probability that the tenth person randomly interviewed in that city is the fifth one to own a dog

Using equation (1), we get:

P(X = 10) = b(10: 5, 0.3)

                = [(10-1) (5 - 1)](0.3)^5(0.7)^1^0^-^5

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               = 0.05146

Hence, The probability that the tenth person randomly interviewed in that city is the fifth one to own a dog = 0.051

Learn more about Probability at:

brainly.com/question/743546

#SPJ9                                  

4 0
10 months ago
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