A magazine surveyed readers and found that 175 of the 200 teenagers included in the survey spend at least two hours per night on
the internet. The magazine then claimed that 80% of its readers use the internet each night. Which statement about the claim is valid? Group of answer choices It is accurate since 175 out of 200 is greater than 80%. It is accurate because the magazine used a representative sample in its survey. It is not accurate because the sample may not have included both boys and girls. It is not accurate because only information from teenagers was used to make the claim.
It is not accurate because only information from teenagers was used to make the claim.
Step-by-step explanation:
This is the correct answer because they only used the data that pertained to their teen readers. The magazine does not only have teen readers, but has many ages. The statement regarding internet use generalizes it to all readers, not just teens, therefore making its claim inaccurate because the scope of inference is not appropriate for the claim that was made.
Compounded once a year: A=P(1+r)^t 2500=500(1+0.095)^t 1.095^t=5 because the unknown number is an exponent, use log to find the unknown: log(1.095^t)=log5 tlog1.095=log5 t=log5/log1.095 use your calculator, t=17.734 so this person is about 28 years old.
