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4 years ago

when janet runs her average step length is 36 inches. how many steps would she have to take to run 1 mile?

Mathematics

1 answer:

erica [24]4 years ago

3 0

Answer:

Step-by-step explanation:

1 mile divided by 36 inches equals 1760 inches and if there are 30 inches in a step, we would divide 1760 by 30 and then the answer would be 58.6666666667 but if you don't need the decimal, we can take and round this to 59 and then we have our answer.

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In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0

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a) A response of 8.9 represents the 92nd percentile.

b) A response of 6.6 represents the 62nd percentile.

c) A response of 4.4 represents the first quartile.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5.9

Standard Deviation, σ = 2.2

We assume that the distribution of response is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

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P(X < x)

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$P(z$

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A response of 8.9 represents the 92nd percentile.

b) We have to find the value of x such that the probability is 0.62

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$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.62$

Calculation the value from standard normal z table, we have,

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A response of 6.6 represents the 62nd percentile.

c) We have to find the value of x such that the probability is 0.25

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.25$

Calculation the value from standard normal z table, we have,

$P(z$

$\displaystyle\frac{x - 5.9}{2.2} = -0.674\\x = 4.4172 \approx 4.4$

A response of 4.4 represents the first quartile.

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Answer:

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Step-by-step explanation:

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3 years ago

when janet runs her average step length is 36 inches. how many steps would she have to take to run 1 mile?​

when janet runs her average step length is 36 inches. how many steps would she have to take to run 1 mile?