Which type of organization is Freemasonry classified as?

Which of the following actions was NOT taken by William Lloyd Garrison?

What event inspired Nat Turner to lead a rebellion in 1831?

Which leader was at the forefront of the Southampton Insurrection?

Suppose that an infectious disease has R0 equal to 3, which means that on average an infected person can pass on the disease to 3 other persons. We can use Poisson distribution with rate parameter (i.e., lambda) equal to 3 to model the number of new cases generated by one infected person. Find the probability that an infected person passes on the disease to at least one person (i.e., greater than or equal to one person). Keep at least 2 decimal places. (You can submit your code in the last question.)

Consider the R command library(‘vcd’). Which statement is true? 

In a sample of 100 unrelated individuals from country Y, 40 have blood type O. What is a reasonable estimate of the proportion of individuals with blood type O in country Y? 

Consider Question 23. Find the probability that an infected person passes on the disease to less than or equal to 5 persons. Keep at least 2 decimal places. (You can submit your code in the last question.)

[Optional] You can include the R code for Questions 22, 23, 24 here. This is NOT required, and you can choose to only provide code for some questions. Indicate the question number in your code. When your numerical answers are wrong, you may receive partial credits if your code does not have significant mistakes. However, partial credits may be deducted if your answer is correct but your code is wrong.   

Which of the following CANNOT be used as the name of a variable in R?