Please help with these? 1. A research group at Johns Hopkins University recently

Question

Please help with these?

1. A research group at Johns Hopkins University recently pubished a shudy in which they examined the incidence rate of cancer in various tissues (i.e, the iletime risk of develeping cancer in that tissue) and the total number of divisions for stem cels in those same sssues Their overall hypothesis was that issues in which stem cells divide more frequerdy lie have a greater total number of dinisions) would have greater cancer incidence rates Which type of plot would best summarize this group's data? (b) mosaic plot (e) histogram (a) scatter plot (c) box plot (d) pie chat 3. During a typical Apri the Cal State LA Student Health Center will, on average, diagnose 10 students with influenza each week. Suppose that during one week in April the SHC diagnoses 20 students with influenza. The drector of the SHC wonders if this is an unusually large number of positive diagnoses indicative of an outbreak. What is the appropriate probability distribution to use to answer the director's question? (a) uniform distribution (b) Poisson distribution (c normal distribution (d) geometric distribution (e) binomial distribution

Explanation / Answer

1) To find out in which stem cells divide more frequently would have greater cancer indeicates rates we can use histogram.

A histogram is a graphical representation of the distribution of numerical data. It is an estimate of the probability distribution of a continuous variable (quantitative variable) and was first introduced by Karl Pearson.

3) Here average is 10 and n=20

Now we use poisson distribution with parameter(lambda=10)

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