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Blababa [14]
2 years ago
15

Is it true that Confidence intervals are always close to their true population values?

Mathematics
1 answer:
user100 [1]2 years ago
6 0

Answer:

This means that there is a 95% probability that the confidence interval will contain the true population mean. Thus, P( [sample mean] - margin of error < μ < [sample mean] + margin of error) = 0.95.

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An engineer is standing 250 meters away from a building. She measures the angle of elevation to the top of the building to be 30
RSB [31]

Answer:

144m

Step-by-step explanation:

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tan 30 = opposite / adjacent

0.5774 x 250 = 144m

3 0
3 years ago
Which of the following is the inverse of y=12^x
Elenna [48]
y=12^x\ \ \ |log_{12}\\\\\log_{12}y=\log_{12}12^x\\\\\log_{12}y=x\log_{12}12\\\\x=\log_{12}y


y=12^x\to y^{-1}=\log_{12}x;\ x\in\mathbb{R^+}\to\ y^{-1}=\dfrac{\log x}{\log12};\ x\in\mathbb{R^+}\to y^{-1}=\dfrac{\ln x}{\ln 12}

Used:\\\\\log_aa=1\\\\\log_ab^n=n\log_ab\\\\\log_ab=\dfrac{\log_cb}{\log_ca}
3 0
3 years ago
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V125BC [204]
The answer is :
Q5/17
6 0
3 years ago
One serving of punch is 250 ml.will ten servings fit in a 2 liter bowl
Oliga [24]
First, we should find how many total milliliters we have by multiplying 250 mL by 10 servings to get 2500 mL. Then, we can convert 2500 mL to liters because 1000 mL equals 1 liters (2500/1000=2.5 L). Then since the bowl can only have 2 liters of punch, then 10 servings will not fit.

Hope this helps
5 0
3 years ago
Look at the pic attached
Anni [7]

Answer:

x= -8 BDC= 68

EXPLANATION:

They create a straight angle which is always equal to 180. this means you must add both equations and set them equal to 180.

7 0
3 years ago
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