To find: The number of individuals is described by the two way table.
Answer to Problem 6.8CYS
The correct answer is option (b).
Explanation of Solution
Given info:
The two way table shows the responses by permissive school with regards to cell phone.
Frequency | Forbid |
Allow in school but not in class | Allow in class |
New | 25 | 19 | 4 |
Less often | 14 | 31 | 6 |
At least several times per week | 14 | 23 | 8 |
Every day | 97 | 314 | 57 |
Calculations:
Reason for correct answer:
The total number of individuals described by the two way table is,
Reason for incorrect answer:
Option (a): 468 is wrong because the calculated total number of individuals is described by the two ways table is, 612.
Option (c): Need more information is wrong because the calculated total number of individuals is described by the two ways table is, 612.
Conclusion:
Hence, the total number of individuals is described by the two ways table is, 612.
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Chapter 6 Solutions
The Basic Practice of Statistics
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