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mylen [45]
3 years ago
12

Harry asked a sample of 4 people how many siblings they had. Here are their responses:

Mathematics
1 answer:
earnstyle [38]3 years ago
6 0

Answer:

Formula of standard deviation = √Variance

Standard deviation = 1

Step-by-step explanation:

X-bar is the variance

Therefore, the answer would be

√X-bar

√1 = 1

!!

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We are supposed to assume FC and AD is straight line
let's find all the angles


you already see the right angle is 90 degrees, you got that right
striaght line is 180 degrees

90+46+EF=180
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you did get that A F=46 because it is oposite

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a. 90
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c.134
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