Welcome! You are encouraged to register with the site and login (for free). When you register, you support the site and your question history is saved.
Review: Teachers Aged 30+
Explanation
This question hasn't told us how many people are in the
study group, and evidently therefore the answer doesn't depend on this value,
so let's imagine 100 people are in the study group. Then, 64% or 64 people are
aged 30 or older. Of that 64, 12.5% are teachers. 12.5% is (it's half a quarter), so as of 64 it represents 8 people. The odds of
choosing one of these 8 people randomly from the group are ,
since there are 100 people. So the probability is 8%.
The correct answer is (A).
If you believe you have found an error in this question or explanation, please contact us and include the question title or URL in your message.