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guajiro [1.7K]
1 year ago
14

Suppose that shoe sizes of American women have a bell-shaped distribution with a mean of 8.1 and a standard deviation of 1.47. U

sing the empirical rule, what percentage of American women have shoe sizes that are greater than 5.16?
Mathematics
1 answer:
ycow [4]1 year ago
7 0

97.5% of American women have shoe sizes that are no more than 11.47.

Lets try to solve the question,

Given values ,

Dev (u) = 8.47

Standard deviation (x) = 1.47

So we e have to find the percentage of American women whose shoe size's are not more than 11.47 P(x<11.47).

Lets find z score by using empirical formula.

=> z= (x-u) / a

=> 11.47-8.47/1.5

=> z= 2

Now we have to find P(z < 2) . Using the empirical rule, we know that 97.5% data lies below 2 standard deviations above mean.

Therefore the 97.5% of American women have shoe sizes that are no more than 11.47.

Learn more about on:

brainly.com/question/11048871

#SPJ10

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What is the inverse matrix that can be used to solve this systems of equations
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+. - +

A= [ 1 -1 -1 ]

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[ 1 1 4 ]

The determinant of this is 1.

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| 2 3 | |-1 3 | |-1 2 |

| 1. 4. | |1 4 | |1. 1 |

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After Evaluating The Determinant of each 2x 2 Matrix

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Reflect this along the diagonal( Keep 5,5 -2)

Then switching positions of other value

No need of Multiplying by the determinant because its value is 1 from calculation.

After this

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In the blueprint for A rectangular balcony is 1 inch by 1.75 inches if the actual length is 7 feet what is the perimeter
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Step-by-step explanation:

Given

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The ratio of length to breadth in blue print must be equal to the ratio of actual length to breadth

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