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ki77a [65]
2 years ago
8

Whats the perimeter of 149m and 76m

Mathematics
1 answer:
Inessa [10]2 years ago
8 0
I am assuming the length and width are 149 and 76m
It would be a rectangle with two sides being 149 and two sides 76.
So 2 x 149 = 298 and 76 x 2 = 152. 298 + 152 = 450
The perimeter is 450m
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Answer:

47.54% probability that more than 20 households but fewer than 35 households receive a retirement income

Step-by-step explanation:

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In this problem, we have that:

p = 0.173, n = 120. So

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\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{120*0.173*0.827} = 4.14

In a random sample of 120 households, what is the probability that more than 20 households but fewer than 35 households receive a retirement income?

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Z = \frac{34 - 20.76}{4.14}

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X = 21

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Z = \frac{21 - 20.76}{4.14}

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0.9993 - 0.5239 = 0.4754

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