<span>Given that one
hundred students are asked a survey question as they walk through the
front gate at their middle school.
This a representative sample of
the schools population because the sampling is random and is not biased.</span>
Answer:
70:100 700:1000 14:20 140:200
Answer:
1. 110
2. 84
Step-by-step explanation:
Answer:

Step-by-step explanation:
The vertex form of a parabola f(x) = ax² + bx + c:

(h, k) - vertex

We have the equation:

Finally:

Answer: 56 people in line are not senior citizens
Step-by-step explanation: