828.6 repeating (or 829 rounded up) feet per second.
Answer:
a) cluster sampling
Step-by-step explanation:
In cluster sampling method, each member of a population is assigned to one and only one group.This means clusters are formed through probability method usually a simple random sampling.The participants in the clusters are the only one to be surveyed.
In this example, simple random sampling is used to identify 12 home rooms(cluster) where a group of 20 students (participants) in each room is given the survey.
The answer's D. 35/22
Well i have to write 20 words so dont mind this part
The answer is 15.3 because if you subtract 6.7 from 22 you’ll get the answer 15.3
