The number of particles per millilitre in a solution is modelled by a Poisson distribution with mean 0.15 A randomly selected 50 millilitre sample of the solution is taken. (a) Find the probability that (i) exactly 10 particles are found, (ii) between 6 and 11 particles (inclusive) are found. (4) Petra takes 12 independent samples of $$\(m\)$$ millilitres of the solution. The probability that at least 2 of these samples contain no particles is 0.1184 (b) Using the Statistical Tables provided, find the value of $$\(m\)$$ (6)

Mathematics
IGCSE&ALevel
EDEXCEL
Exam No:wst02-01-que-20220601 Year:2022 Question No:5

Answer:



Knowledge points:

1. The Binomial and Poisson distributions

Solution:

Download APP for more features
1. Tons of answers.
2. Smarter Al tools enhance your learning journey.
IOS
Download
Android
Download
Google Play
Download