Step 6 Objective
Estimate probabilities from experimental data; understand that:
- if an experiment is repeated, there will be different outcomes;
- increasing the number of times an experiment is repeated generally leads to better estimates of probability.
- Examples of what pupils should
know and be able to do - Probing questions
- What if pupils find
this a barrier?
Probing questions
When you spin a coin, the probability of getting a head is ½. So if you spin a coin ten times you would get exactly five heads. Is this statement true or false? Why?
You toss a coin 100 times and count the number of times you get a head. A robot is programmed to toss a coin 1000 times. Who is most likely to be closer to getting equal numbers of heads and tails? Why?