Mathematics, 20.10.2019 13:20 zwalkert01
In an attempt to document the percentage of teenagers in the united states who play video games for more than 4 hours per day, the group concerned citizens for teenage welfare surveyed 2000 teenagers randomly selected from across the united states. it was discovered that 33% of teenagers surveyed play video games for more than 4 hours per day. concerned citizens for teenage welfare released a statement saying: "if you are the parent of the 33% of teenagers in america who play video games for more than 4 hours per day, you should consider engaging your teen in at least one other activity per day."
what does the concerned citizens for teenage welfare statement represent?
it represents an inference about teenagers in the united states.
it represents the population parameter.
it represents the random sample.
it represents the sample statistic.
Answers: 3
Mathematics, 21.06.2019 16:10
The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82
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In an attempt to document the percentage of teenagers in the united states who play video games for...
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