Answer:
Step-by-step explanation:
The question is not biased. It doesn't push the participants to answer one way or another.
However, the sample is biased. It does not represent the population.
The first and fourth options are correct.
Answer:
U = -5
Step-by-step explanation:
-8u = -7u + 5
-u = 5
u = -5
Im assuing the 0.6 is a percentage and not the number of passes then :
100% - 60% = 40%
