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Hi! I have a question for a statistics lab. I hope you can help me. Thank you in advance! We asked 6195 people to answer
Hi! I have a question for a statistics lab. I hope you can help me. Thank you in advance!
We asked 6195 people to answer a questionnaire about their level of satisfaction of the food at the cafeteria. From a list of 2000 randomly selected people who responded to the questionnaire, what is the probability of randomly choosing a person with a level of satisfaction of more than 8, including 8.
Level of satisfaction | Quantity | % of Total | % cumulated | ||||
---|---|---|---|---|---|---|---|
0 | 129 | 2.1% | 2.1% | ||||
1 | 47 | 0.8% | 2.8% | ||||
2 | 87 | 1.4% | 4.2% | ||||
3 | 124 | 2.0% | 6.2% | ||||
4 | 133 | 2.1% | 8.4% | ||||
5 | 545 | 8.8% | 17.2% | ||||
6 | 502 | 8.1% | 25.3% | ||||
7 | 970 | 15.7% | 41.0% | ||||
8 | 1224 | 19.8% | 60.7% | ||||
9 | 792 | 12.8% | 73.5% | ||||
10 | 1642 | 26.5% | 100.0% | ||||
Level of satisfaction | Modality | Quantity | Total | Proportion | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|
0 | 129 | 6195 | 0.021 | ||||||||
1 | 47 | 6195 | 0.008 | ||||||||
2 | 87 | 6195 | 0.014 | ||||||||
3 | 124 | 6195 | 0.020 | ||||||||
4 | 133 | 6195 | 0.021 | ||||||||
5 | 545 | 6195 | 0.088 | ||||||||
6 | 502 | 6195 | 0.081 | ||||||||
7 | 970 | 6195 | 0.157 | ||||||||
8 | 1224 | 6195 | 0.198 | ||||||||
9 | 792 | 6195 | 0.128 | ||||||||
10 | 1642 | 6195 | 0.265 | ||||||||
Note. H est une proportion 0.5 | |||||||||||
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