A very large number of Aedes mosquito larvae are on the surface of a river, scattered randomly so that the number of larvae is, on average, 3 per square cm. For a study of the spread of the Zika virus, a small circular net of radius 1 cm is placed in the water and the larvae in that area collected. G 1 cm Figure 1: The net used for collecting mosquito larvae (a) Find the probability that more than 5 larvae are collected in the net. (b) When 10 nets are used, what is the probability that exactly eight of the nets have more than 5 larvae. (c) Let T be the total number of larvae in four nets. What is the distribution of T? (d) Examine the assumptions leading to the Poisson Process and indicate which may not hold in this case, explaining why.
A very large number of Aedes mosquito larvae are on the surface of a river, scattered randomly so that the number of larvae is, on average, 3 per square cm. For a study of the spread of the Zika virus, a small circular net of radius 1 cm is placed in the water and the larvae in that area collected. G 1 cm Figure 1: The net used for collecting mosquito larvae (a) Find the probability that more than 5 larvae are collected in the net. (b) When 10 nets are used, what is the probability that exactly eight of the nets have more than 5 larvae. (c) Let T be the total number of larvae in four nets. What is the distribution of T? (d) Examine the assumptions leading to the Poisson Process and indicate which may not hold in this case, explaining why.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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