mrsali35
15.12.2019 •
Mathematics
Acompany surveys every tenth person in the phone book. what type of sampling did the company use?
a. biased sample
b.self-selected sample
c. stratified sample
d. systematic sample
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Ответ:
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Ответ:
Chance of getting number greater than 4 on one roll:
Either getting a 5 or 6
2/6 probability
2/6 = 1/3
If we roll the cube 12 times, the probability of getting a number greater than 4 is 1/3 of the time
12 * 1/3 = 4
She is expected to get a number greater than 4, 4 times