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3 years ago

The island has 600 bikes and 900 people. What is the bike to person ratio?

Mathematics

2 answers:

cluponka [151]3 years ago

8 0

Answer:

2:3 (2 bikes for every 3 people)

Step-by-step explanation:

ZanzabumX [31]3 years ago

5 0

2:3, because if you take 600 and divide it by 3 it would be 200 so just take off those zeros then you divide 900 by 3 and get 300 and take off the zeros leaving 2:3

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olga2289 [7]

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3 years ago

Two groups collected litter along the side of the road it takes each group 5 minuites to clean up a 200 yard section how long do

meriva

This is dividing
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3 years ago

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3 years ago

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daser333 [38]

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4 years ago

A study was conducted to investigate the relationship between maternal smoking during pregnancy and the presence of congenital m

Pachacha [2.7K]

Answer:

a) In the explanation.

b) P=0.09714

c) P=0.0866

d) p=0.208

Step-by-step explanation:

a) The sampling distribution will have this properties:

1 - The sampling distribution of a proportion is equal to the binomial distribution.

2 - The mean of the sampling distribution will be equal to the proportion of the population (0.328).

$\mu=\pi=0.328$

3 - The standard deviation will be equal to the square root of the product of the proportion and its complementary, divided by the sample size.

$\sigma_s=\sqrt{\pi(1-\pi)/n}=\sqrt{0.328*(1-0.328)/25}=0.094$

B) The fraction with sample proportion of 0.45 or higher is

$z=(p-\pi)/\sigma=(0.45-0.328)/0.094=1.298\\\\P(p\geq0.45)=P(z\geq 1.298)=0.09714$

C) The fraction with sample proportion of 0.20 or lower is

$z=(p-\pi)/\sigma=(0.2-0.328)/0.094=-1.362\\\\P(p\leq0.2)=P(z\geq -1.362)=0.0866$

D) The value of p that cuts off the lower 10% of the distribution corresponds to z=-1.28.

Then we have

$z=(p-\pi)/\sigma\\\\p=\pi+z\sigma=0.328+(-1.28)*0.094=0.328-0.120=0.208$

7 0

3 years ago