Back to Making Inferences and Justifying Conclusions — Problem 3 · Task Set 36

HSS.IC Tutor Intake - Sampling, Study Design, and Statistical Inference

This short check helps your tutor understand where to start with statistical inference. Answer each question without help. If you are not sure, give your best try.

Grade 11·12 problems·~15 min·Common Core Math - HS Statistics and Probability·domain·ic

Work through problems with immediate feedback

Foundations of Inference

A simulation of a fair coin (200 trials of 10 flips) shows that 9 or
10 heads in 10 flips happens occasionally. A friend flips a real coin
and gets 9 heads in 10 flips. What is the correct conclusion?

The coin is proven to be unfair.

This is mild evidence to question the fair-coin model, but not
proof that the coin is unfair.

The coin is proven to be fair, since the result appeared in the
simulation.

Nothing can be said, because simulations are unreliable.