IB Maths AI HL 4.17 Poisson distribution Question Bank
Practise IB Mathematics HL 4.17 by applying poisson distribution methods to exam-style questions.
- Syllabus
- First assessment 2021
- Course
- Mathematics: applications and interpretation HL
- Level
- HL
Practise IB Mathematics HL 4.17 by applying poisson distribution methods to exam-style questions.
Taylor is playing a computer game in which they shoot at spaceships and battleships. The number of spaceships they hit per minute can be modelled by a Poisson distribution with mean 4.2. The number of battleships they hit per minute can be modelled by a Poisson distribution with a mean of 2.3. Any single hit occurs independently of all others.
Find the probability Taylor hits
at most 10 spaceships in 2 minutes.
mean =8.4
a total of more than 10 spaceships and battleships in one minute.
attempt to add two means
4.2+2.3=6.5
P(S+B>10)=P(S+B≥11)
0.0668 (0.0668387…)
State one reason why the distribution of T cannot be Poisson.
any valid reason
for example:
mean is not equal to variance OR T cannot take all integer values