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# Binomial or Not?

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### Over-booking

### Statistics - Maths of Real Life

### Binomial Conditions

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You might find it helpful to write down the conditions for the binomial distribution before you start deciding whether each situation can be described by the binomial distribution or not.

For each situation, can you match the binomial distribution conditions up to the situation?

If you can, it's binomial; if not, it almost certainly isn't. Which condition or conditions fail?

One thing to watch out for: "success" doesn't necessarily mean something "good"; "success" is used only to describe the thing we are counting.

For each situation, can you match the binomial distribution conditions up to the situation?

If you can, it's binomial; if not, it almost certainly isn't. Which condition or conditions fail?

One thing to watch out for: "success" doesn't necessarily mean something "good"; "success" is used only to describe the thing we are counting.

The probability that a passenger books a flight and does not turn up is 0.05. For an aeroplane with 400 seats how many tickets can be sold so that only 1% of flights are over-booked?

This pilot collection of resources is designed to introduce key statistical ideas and help students to deepen their understanding.

When is an experiment described by the binomial distribution? Why do we need both the condition about independence and the one about constant probability?