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katovenus [111]

3 years ago

10

A sociologist recently conducted a survey of citizens over 60 years of age who have net worths too high to qualify for Medicaid

but have no private health insurance. The ages of the 25 uninsured senior citizens were as follows:
68 73 66 76 86 74 61 89 65 90 69 92 76
62 81 63 68 81 70 73 60 87 75 64 82
Find the upper quartile of the data.
a) 65.5
b) 92
c) 81.5
d) 073

1 answer:

olchik [2.2K]3 years ago

7 0

Answer:

c) 81.5

Step-by-step explanation:

Listing the 25 ages in crescent order:

60 61 62 63 64 65 66 68 68 69 70 73 73 74 75 76 76 81 81 82 86 87 89 90 92

The upper or third quartile's position is given by:

$Q_3=N_{\frac{3}{4}(n+1)}\\Q_3}=N_{\frac{3}{4}(25+1)}=N_{19.5}$

This means that the third quartile is the average between the 19th and 20th numbers:

$Q_3=\frac{81+82}{2} \\Q_3 = 81.5$

The upper quartile is 81.5.

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Read 2 more answers

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Alinara [238K]

Answer:

1. {5,-9}

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The equation $f(x)=x+\lvert 2x-3 \rvert=12$ can be solved as follows:

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$h(x-1)=x-3$

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$\lvert x-1 \rvert -2x+2+5=x-3$

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$x-1=3x-10\,\,\text{or}\,\,x-1=-(3x-10)$

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$x=9/2\,\,\text{or}\,\,x=11/4$

But, x=11/4 is not a solution of this equation. So the unique solution is x=9/2.

8 0

3 years ago

A rectangle is reduced by a scale factor of One-fourth.

Dvinal [7]

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The formula for calculating the area of a rectangle is expressed as:

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Hence the ratio of the area of the smaller rectangle to the area of the larger rectangle is 1:16

Learn more on area of rectangle here: brainly.com/question/25292087

#SPJ1

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