Probability

NZ Level 6 (NZC) Level 1 (NCEA)

Traffic Light Problems

Traffic lights showing green, red and yellow lights are set up on a race track. A race car approaching the lights is equally likely to see a green, red or yellow light.

This is because:

the three lights stay on for the same amount of time.

A

the race car driver is driving at a constant speed.

B

the lights are the same size.

C

the three lights stay on for the same amount of time.

A

the race car driver is driving at a constant speed.

B

the lights are the same size.

C

Easy

Less than a minute

Sign up to try all questions

Investigate situations that involve elements of chance: A comparing discrete theoretical distributions and experimental distributions, appreciating the role of sample size B calculating probabilities in discrete situations.

Investigate a situation involving elements of chance