Welcome to the Space Shuttle Program of NASA: Here is a erere is a randomly chos

Question

Welcome to the Space Shuttle Program of NASA: Here is a erere is a randomly chosen sample of all 13s shuttle fights, the size of the rew, and the duration of each flight given in hours. SampleMission IDShuttle Crew Duration ID Size 192 120 STS-3 STS-6 STS-51-J STS-37 STS-43 STS-42 STS-66 STS-71 STS-90 STS-88 STS-116 Columbia Challenger 4 97 143 213 193 262 235 381 283 Atlantis Atlantis Atlantis 6 Discovery 7 Atlantis Atlantis Columbia7 Endeavour 6 Discovery7 10 309 Terminology: I. From a statistical study perspective, what would you call the collection of ALL 135 Space Shuttle flights? 2. One characteristic of ALL these flights is the flight duration. In statistics what is such a characteristic called? 3. From a statistical study perspective, what would you call the randomly selected subset above of Space Shuttle flights? 4. One characteristic of this randomly selected set of flights is the crew size. In statistics, what is such a characteristic called?

Explanation / Answer

1. Ans: From a statistical study perspective, the collection of ALL 135 Space flights is called Population.

2. Ans: One characteristic of ALL these flights is the flight duration, in statistics such a characteristic is called variable.

3. Ans: From a statistical study perspective, the randomly selected subset above of Space Shuttle flights is called sample.

4. Ans: One characteristic of this randomly selected set of flights is the crew size. In statistics, such characteristic is called statistic.

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