a) The population is all of the flights belonging to the particular airline. It's not all flights in general because the airline does not have control over a rival company's flight schedule.
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b) The sample is the 5 airlines the company selected. Ideally the sample should represent the population as much as possible. The larger the sample, the more representative the sample is.
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c) No, the sample is likely <u>not</u> representative because one day of flight does not represent the entire lifetime of all flights done so far for that company. This particular day could have been a very good day with good weather, which may explain why the 5 flights were all on time.
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d) It would be better for the company to select the days at random and sample all of the flights for those particular days chosen. This is a cluster sample. Each cluster is a day. Also, I think more flights should be sampled. Five flights does not seem like enough.
Answer:
6
Step-by-step explanation:
b(x) = |x + 4|
b(-10) = |-10 + 4|
-10 + 4 = -6
|-6| = 6
b(-10) = 6
Answer: A=5/7. B=3/2. C=1/6
D=3/5. E=14/11. G=5/7 H=3/2 I=1/6 j=3/5 K=14/11 L=7/8
Step-by-step explanation:
Answer:
3. mean of 2nd is larger
Step-by-step explanation:
mean of 2nd sem 87 > 86.8 1st sem
The 60th term is 895- each term is 15 more than the last, so we know that the 60th term will be 15 times 59 more than the first term, or 895.
