The video solves a numerical on Malaria Intervention.
In an event to prevent Malaria, a nonprofit distributes mosquito nets in a village. Consider this an intervention and a project. The village is under threat of contracting Malaria from other villages as the epidemic is spreading. Take prevention of Malaria as the success of the intervention. After the project is over, the estimate who do not have Malaria is 62 percent. Not having Malaria in a trial is a success. Assume the following. The village never had any mosquito nets, all households received free nets, and all the households in the sample used the nets. There is no case of Malaria among the sampled people both in the control and treatment trials before the experiment. The selection of the people follows the independent and identical distribution. The question requires a overview of randomised controlled trials. For now consider this question as a question to explain concepts of probability and the Bernoulli Distribution.
What is the probability that five households randomly sampled at the end of the intervention have Malaria?
What is the probability that none of the five sampled households have Malaria?
The middle Road
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