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2 answers:
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Answer:
The proportion of all young adult women in the United States are taller than 6 feet(72 inches ) is
Step-by-step explanation:
From the question we are told that
The mean is
The standard deviation is
Generally 6 feet is equivalent to 6 * 12 = 72 inches
Generally the proportion of all young adult women in the United States are taller than 6 feet(72 inches ) is mathematically represented as
From the z-table
The area under the normal curve to the right corresponding to 2.963 is
=>
Answer:
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Step-by-step explanation:
Answer:
height = 11.5 in
Step-by-step explanation:
The area (A) of a trapezoid is calculated using the formula
A = h(a + b)
where h is the height and a, b the bases
here a = 21, b = 8 and A = 166.75, hence
h(21 + 8) = 166.75
Multiply both sides by 2 to eliminate the fraction
29h = 333.5 ( divide both sides by 29 )
h = 11.5 in