Answer:
B
Step-by-step explanation:
A biased sample is a sample that does not accurately represent the population.
The survey asked only girls, but we can assume this school has both boys and girls. Therefore, by only asking girls, it creates a bias, because the boys in the school are not represented.
Therefore, the correct choice is B: biased sample.
Answer:
41-275=234
15-47=62
-72-{151}=223
612-144=174
Step-by-step explanation:
Answer: D.
Step-by-step explanation:
X+6
Answer:
Yes
Step-by-step explanation:
There is definetly a whole number so thats correct
1. subtract 4 from 6 equals 2
2. turn that 4 to a 1 whole and leave what's alone
3. Look at what you did... 1 2/4
4. Take pride
Equal in what? Cm, m, mm ?