Further Mathematics 7367: Poisson Distribution Topical Past Paper Questions

Research has shown that the mean number of volcanic eruptions on Earth each day is 20 Sandra records 162 volcanic eruptions during a period of one week. Sandra claims that there has been an increase in the mean number of volcanic eruptions per week. Test Sandra's claim at the 5%…

Daisies and dandelions are the only flowers growing in a field. The number of daisies per square metre in the field has a mean of 16 The number of dandelions per square metre in the field has a mean of 10 The number of daisies per square metre and the number of dandelions per squ…

A company records the number of complaints, X, that it receives over 60 months. The summarised results are (a) $$ \sum x=102\quad and\quad\sum(x-\bar{x})^{2}=103.25 $$ Using this data, explain why it may be appropriate to model the number of complaints received by the company per…