The Poisson Distribution Is a Discrete Distribution That Expresses the Probability

question 117

Multiple Choice

The Poisson distribution is a discrete distribution that expresses the probability of a fixed number of events occurring in a fixed interval.For example,suppose we want to model the number of arrivals per minute at the campus dining hall during lunch.We observe the actual arrivals in 200 one-minute periods in 1 week.The sample mean is 3.8 and the results are shown below. The probabilities based on a Poisson distribution with a mean of 3.8 are shown below. What is the expected count for 0 arrivals?

• A)10
• B)200
• C)4
• D)None of the above

Identify the implications of phylogenetic relationships for classification systems.

Apply the principle of parsimony in determining phylogenetic relationships.

Recognize the significance of convergent evolution, homoplasy, and synapomorphies in phylogenetics.

Explain the importance of outgroups in determining ancestral states.

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Definitions:

Radiolaria

Microscopic planktonic marine organisms with intricate silica skeletons, important in paleoclimate studies.

Trypanosomes

Single-celled parasitic protozoans, known for causing diseases like sleeping sickness in humans and animals.

Infect

The process by which organisms, such as bacteria, viruses, fungi, or parasites, enter, invade, and multiply within another organism, causing disease or illness.

Biting Insects

Biting insects are those that pierce the skin of humans or animals to feed on blood; common examples include mosquitoes, flies, and ticks, which can also act as vectors for various diseases.