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ella [17]
3 years ago
6

If 1 1/2 sections are 3/4 mile long, how long is each section?

Mathematics
1 answer:
nydimaria [60]3 years ago
6 0

Answer:

1/2 mile

Step-by-step explanation:

.75 mile /1.5 sections = .5 mile/section

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Answer:

a) 0.1108

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Step-by-step explanation:

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Firstly, the binomial probability is given by;

where, n = number of trails(samples) taken = 25

r = number of successes

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retired people i.e. 20%.

Let X = Number of people retired

(a) Probability that exactly seven are retired people = P(X = 7)

P(X = 7) =

= = 0.1108

(b) Probability that 10 or more are retired people = P(X >= 10)

P(X >= 10) = 1 - P(X <= 9)

Now, using binomial probability table, we find that P(X <= 9) is 0.98266 at n = 25, p = 0.2 and x= 9

So, P(X >= 10) = 1 - 0.98266 = 0.0173.

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Aliun [14]
I beleive the correct answer would be the either the second, or the last one, but you go with whatever feels more comfortable. Hope this was helpful! (:
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Answer:

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Step-by-step explanation:

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