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In the same speech, from "in an ordinary crime" to the end of the speech, danforth lends his words the appearance of logic by his use of

What are the major trends and specialties in psychology?

Alife insurance salesman sells on the average 3 life insurance policies per week. use poisson's law to calculate the probability that in a given week he will sell 2 or more policies but less than 5 policies? i just require an answer.