3 years ago

Someone please help asap

Mathematics

1 answer:

BigorU [14]3 years ago

6 0

The third one is the answer

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A rare form of malignant tumor occurs in 11 children in a million, so its probability is 0.000011. Four cases of this tumor occ

Shkiper50 [21]

Answer:

a) The mean number of cases is 0.14608 cases.

b) The probability that the number of cases is exactly 0 or 1 is 0.990.

c) The probability of more than one case is 0.010

d) No, because the probability of more than one case is very small

Step-by-step explanation:

We can model this problem with a Poisson distribution, with parameter:

$\lambda=r*t=0.000011*13,280=0.14608$

a) The mean amount of cases is equal to the parameter λ=0.14608.

b) The probability of having 0 or 1 cases is:

$P(k=0)=\frac{\lambda^0 e^{-\lambda}}{0!}=\frac{1*0.864}{1} =0.864\\\\ P(k=1)=\frac{\lambda^1 e^{-\lambda}}{0!}=\frac{0.14608*0.864}{1} =0.126\\\\P(k\leq1)=0.864+0.126=0.990$

c) The probability of more than one case is:

$P(k>1)=1-P(k\leq 1)=1-0.990=0.010$

d) The cluster of 4 cases can not be due to pure chance, as it is a very high proportion of cases according to the average rate. Just having more than one case has a probability of 1%.

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3 years ago

Identify the hypothesis and conclusion of the conditional below.

Likurg_2 [28]

Answer:

the hypothesis is that the animal is a poodle. the conclusion is that since poodles are of the canine family, it would be a dog.

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3 years ago

Jim ran 3/4 of a mile everyday after school for two weeks. how many miles did he run each day?

bagirrra123 [75]

3/4 X 7/1=5 1/4 Then, 5 1/4+5 1/4=10 1/2. Answer 10 1/2

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