2 years ago

Find each missing measure find GF and m

Mathematics

1 answer:

8090 [49]2 years ago

8 0

i think its 50 im not completley for sure though

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25% of all who enters a race do not complete. 30 haveentered.

nikklg [1K]

Answer:

The probability that exactly 5 are unable to complete the race is 0.1047

Step-by-step explanation:

We are given that 25% of all who enters a race do not complete.

30 have entered.

what is the probability that exactly 5 are unable to complete the race?

So, We will use binomial

Formula : $P(X=r) =^nC_r p^r q^{n-r}$

p is the probability of success i.e. 25% = 0.25

q is the probability of failure = 1- p = 1-0.25 = 0.75

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Hence the probability that exactly 5 are unable to complete the race is 0.1047

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3 years ago

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