Mathematics (AS & A Level) · Oct / Nov 2021 · Paper 61 · Question 2
9709
As printed in the paper
The question as text
The number of enquiries received per day at a customer service desk has a Poisson distribution with mean 45.2. If more than 60 enquiries are received in a day, the customer service desk cannot deal with them all. Use a suitable approximating distribution to find the probability that, on a randomly chosen day, the customer service desk cannot deal with all the enquiries that are received. [4]
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.