Answer:
No classification is guaranteed.
domain = [-3 , 1)
range = [-5 , 4]
have a nice day
and this shape ( and that [ matters so be careful.
Given that a city council consists of six democrats and seven republicans, the probability of selecting three democrats and two republicans if a committee of five people is to be selected is given by
Answer:
a) 48.408
b) 1.235
Step-by-step explanation:
a)
The average hardness value xbar can be computed as
xbar=sum of values/number of values
xbar=(46.5+46.9+49.4+50.3+49.8+48.8+47+47.7+48.3+49.4+47.8+49)/12
xbar=580.9/12
xbar=48.408 (rounded to 3 decimal places).
The average hardness value is 48.408.
b)
The standard deviation hardness value s can be computed as
![s=\sqrt{\frac{sum(x-xbar)^2}{n-1} }](https://tex.z-dn.net/?f=s%3D%5Csqrt%7B%5Cfrac%7Bsum%28x-xbar%29%5E2%7D%7Bn-1%7D%20%7D)
x x-xbar (x-xbar)
²
46.5 -1.90833 3.64174
46.9 -1.50833 2.27507
49.4 0.99167 0.98340
50.3 1.89167 3.57840
49.8 1.39167 1.93674
48.8 0.39167 0.15340
47.0 -1.40833 1.98340
47.7 -0.70833 0.50174
48.3 -0.10833 0.01174
49.4 0.99167 0.98340
47.8 -0.60833 0.37007
49.0 0.59167 0.35007
Total 16.7692
![s=\sqrt{\frac{16.7692}{12-1} }](https://tex.z-dn.net/?f=s%3D%5Csqrt%7B%5Cfrac%7B16.7692%7D%7B12-1%7D%20%7D)
![s=\sqrt{\frac{16.7692}{11} }](https://tex.z-dn.net/?f=s%3D%5Csqrt%7B%5Cfrac%7B16.7692%7D%7B11%7D%20%7D)
![s=\sqrt{1.5245}](https://tex.z-dn.net/?f=s%3D%5Csqrt%7B1.5245%7D)
![s=1.2347](https://tex.z-dn.net/?f=s%3D1.2347)
s=1.235 (rounded to 3 decimal places)
The standard deviation hardness value is 1.235.
Answer:
Caitlin can buy no more than 4 bracelets.
Step-by-step explanation:
Let b represent the number of bracelets
4.75b <= 22
4.75b/4.75 <= 22/ 4.75
b<= 4.63