Answer:
well -2 x -5 = 10 and 10 x -5 = -50 so multiply by negative five
Step-by-step explanation:
-50 x -5 = 250 250 x -5 = -1250
Answer:
32 degrees
Step-by-step explanation:
Makes sense. Brainlist me if I'm right
Answer:
volume=1/2*length*width*height.
Step-by-step explanation:
Answer:
all of them need to be switched
Explanation:
0.45>43%>3/7
Answer:
The 95% confidence interval for the proportion of American adults who smoked in 2008 is (20.1%, 21.1%).
Step-by-step explanation:
The critical value of <em>z</em> for 95% confidence level is:
<em>z</em> = 1.96
Compute the 95% confidence interval for the proportion of American adults who smoked in 2008 as follows:
![CI=\hat p\pm z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}](https://tex.z-dn.net/?f=CI%3D%5Chat%20p%5Cpm%20z_%7B%5Calpha%2F2%7D%5Ccdot%5Csqrt%7B%5Cfrac%7B%5Chat%20p%281-%5Chat%20p%29%7D%7Bn%7D%7D)
![=0.206\pm 1.96\times\sqrt{\frac{0.206(1-0.206)}{21781}}\\\\=0.206\pm 0.0054\\\\=(0.2006, 0.2114)\\\\\approx (0.201, 0.211)](https://tex.z-dn.net/?f=%3D0.206%5Cpm%201.96%5Ctimes%5Csqrt%7B%5Cfrac%7B0.206%281-0.206%29%7D%7B21781%7D%7D%5C%5C%5C%5C%3D0.206%5Cpm%200.0054%5C%5C%5C%5C%3D%280.2006%2C%200.2114%29%5C%5C%5C%5C%5Capprox%20%280.201%2C%200.211%29)
Thus, the 95% confidence interval for the proportion of American adults who smoked in 2008 is (20.1%, 21.1%).