Answer:
1) biased sample
2) random sampling
Step-by-step explanation:
Since the results are based on feedback of students in only one class, it's not a good representative of the entire student body.
Also, since it's a math class there will be a bias.
Better method would be randomly selecting students from the entire school students list and take their feedback
<span>You divide the top of the fraction by the bottom and t<span>hen multiply it by 100.
Example : 1/4
-you do 1 divied by 4 = 0.25
-then you mutiply 0.25 by 100
-and you will get : 25%
-Hope this helps.</span></span>
Answer:
multiply by 4 divide by 2
Step-by-step explanation:
Using proportions, it is found that the population density of Morrison is of 10,000 people per square mile.
<h3>Proportions and density:</h3>
For Wellington, the density is of 12,000 people per square mile.
- In Morrison, it is dilation with scale factor of 1.2. Dilation means that the density is smaller, and the factor of 1.2 means that it's population density is that of Wellington divided by 1.2.
Hence:
The population density of Morrison is of 10,000 people per square mile.
To learn more about proportions, you can take a look at brainly.com/question/24372153
16 cups in a gallon
Monday: 16-2=14
Tuesday: 14-3=11
Wednesday: 11-4=7
7 cups of milk are left