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### Number and algebra

### Geometry and measure

### Probability and statistics

### Working mathematically

### For younger learners

### Advanced mathematics

# Random Variables - Continuous

### Into the Exponential Distribution

### PDF

### What's Your Mean?

### pdf Stories

### Scale Invariance

### Exponential Intersection

### Normal Intersection

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Age 16 to 18

Challenge Level

Get into the exponential distribution through an exploration of its pdf.

Age 16 to 18

Challenge Level

Given a probability density function find the mean, median and mode of the distribution.

Age 16 to 18

Challenge Level

Can you work out the means of these distributions using numerical methods?

Age 16 to 18

Challenge Level

Invent scenarios which would give rise to these probability density functions.

Age 16 to 18

Challenge Level

By exploring the concept of scale invariance, find the probability that a random piece of real data begins with a 1.

Age 16 to 18

Challenge Level

Can the pdfs and cdfs of an exponential distribution intersect?

Age 16 to 18

Challenge Level

Explore the intersection possibilities for normal pdfs.