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kati45 [8]
2 years ago
7

HELPPPPPPP PLZZZZZZZZZZZZ

Mathematics
1 answer:
hodyreva [135]2 years ago
5 0

Answer:

Step-by-step explanation:

(-5/2)²=25/4

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How Important Is Regular Exercise? In a recent poll1 of 1000 American adults, the number saying that exercise is an important pa
Elza [17]

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Step-by-step explanation:

Given that in a recent poll 1 of 1000 American adults, the number saying that exercise is an important part of daily life was 753.

Sample proportion = \frac{753}{1000} =0.753

To find 90% confidence interval we must find std error of proportion first

As per central limit theorem, sample proportion will follow a normal distribution with mean = 0.753

Std error of proportion= \sqrt{0.753*0.247/1000} \\=0.01363

90% Z critical value = 1.645

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Confidence interval lower bound = 0.753-0.0224=0.731

Upper bound = 0.775

6 0
3 years ago
Someone please help out?
Delvig [45]
I dont know im trying to figure that out

7 0
3 years ago
Can some one help please
Dmitry [639]
180-130=50
180-96=84
angles in a triangle add up to 180
50+84=134
180-134=46
x=46 degrees
6 0
3 years ago
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