PGF, probability generating functino, Poisson distribution, expectation, inequality, discrete random variable.

[STEP III 2018 Question 13 (Probability and Statistics)]

Casualties at hospital, mean and probability, poisson distribution.

[STEP I 2015 Question 12 (Probability and Statistics)]

Receiving texts, sum of random variables.

[STEP I 2010 Question 13 (Probability and Statistics)]

Curve sketching, discrete random variable.

[STEP I 2007 Question 14 (Probability and Statistics)]

Independence, errors, approximation, conditional probability, maximisation.

[STEP II 2005 Question 13 (Mechanics)]

Interruptions to work, expectation.

[STEP III 2003 Question 12 (Probability and Statistics)]

Normal approximatino, mean, inequality, discrete random variable.

[STEP II 2003 Question 13 (Mechanics)]

Phone calls, average.

[STEP I 2003 Question 14 (Probability and Statistics)]

Cash dispenser, police.

[STEP I 2002 Question 14 (Probability and Statistics)]

Breaking plates.

[STEP I 2001 Question 13 (Probability and Statistics)]