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hammer [34]
3 years ago
13

As we study random variables, the idea of z-scores will come up again. What is a z-score (in words) and what is the formula for

finding a z-score?
Mathematics
1 answer:
arsen [322]3 years ago
7 0
For a confidence interval with level C, the value p is equal to (1-C)/2. A 95% confidence interval for the standard normal distribution, then, is the interval (-1.96,1.96), since 95% of the area under the curve falls within this interval. <span>The point estimate for the </span>population proportion<span> is the sample proportion, and the margin of error is the product of the Z value for the desired confidence level (e.g., Z=1.96 for </span>95%<span> confidence) and the standard error of the point </span>
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Plz help<br><br><br>If x:6 as 3:9, then x is equal to
sladkih [1.3K]

Answer:

x/6 = 3/9

9x = 18

x = 2

Answer: 2:6 as 3:9

If x:6 as 3:9, then x is equal to  

---

Equation:

(x/6) = 3/9

x = 6(3/9)

Step-by-step explanation:

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A steep mountain is inclined 75 degree to the horizontal and rises 3900 ft above the surrounding plain. A cable car is to be ins
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Answer: 4004.76\ ft

Step-by-step explanation:

Given

inclination is \theta=75^{\circ}

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\Rightarrow l^2=3900^2+910^2\\\Rightarrow l=\sqrt{(3900)^2+(910)^2}\\\Rightarrow l=4004.76\ ft

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