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enot [183]
3 years ago
9

If 2x-6=0 the x =? ​

Mathematics
2 answers:
Oliga [24]3 years ago
7 0

Answer:

x=3

Step-by-step explanation:

fenix001 [56]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

2x-6=0\\2x-6+6=0+6\\2x=6\\x=3

Hope this helps plz hit the crown ;D

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2 years ago
Suppose that administrators of a large school district wish to estimate the proportion of children in the district enrolling in
11Alexandr11 [23.1K]

Answer:

95% z-confidence interval for the proportion of all children enrolled in kindergarten who attended preschool is between a lower limit of 0.528 and an upper limit of 0.772.

Step-by-step explanation:

Confidence interval = p + or - zsqrt[p(1-p) ÷ n]

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n is the number of children sampled = 60

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Significance level = 1 - C = 1 - 0.95 = 0.05

Divide significance level by 2 to obtain critical value (z)

0.05/2 = 0.025 = 2.5%

z at 2.5% significance level = 1.96

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Lower limit = p - 0.122 = 0.65 - 0.122 = 0.528

Upper limit = p + 0.122 = 0.65 + 0.122 = 0.772

95% confidence interval is between 0.528 and 0.772

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3 years ago
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