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3 years ago

6

The distribution of the heights of students in a large class is roughly Normal. Moreover, the mean height is 68 inches, and appr

oximately 95% of the heights are between 62 and 74inches. Thus, the standard deviation of the height distribution is approximately equal to

1 answer:

Thepotemich [5.8K]3 years ago

3 0

Answer:

Probably equal to 6 or 7.

Step-by-step explanation:

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2 years ago

The length of a rectangle is 3ft less than double the width, and the area of the rectangle is 14ft^2 find the dimensions of rect

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Answer: $4\times 3.5\ ft^2$

Step-by-step explanation:

Given

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putting values

$\Rightarrow A=(2w-3)w\\\Rightarrow 14=2w^2-3w\\\Rightarrow 2w^2-3w-14=0\\\Rightarrow 2w^2-7w+4w-14=0\\\Rightarrow w(2w-7)+2(2w-7)=0\\\Rightarrow (2w-7)(w+2)=0\\\\\Rightarrow w=\dfrac{7}{2}\ ft$

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2 years ago

How many centimeters are in 5 inches? 1in. = 2.54 cm<br><br> 5 in. = ?

Aleks [24]

It is very simple the answer is 12.7 cm
You can simply multiply 5 with 2.54 to get the answer
Hope it helps : )

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