. A student randomly guesses on multiple choice exam (and hence independence between each question can be assumed). There are four questions, each question has five options. Let X be the random variable for the number of correct guesses. Write the distribution for X. Determine the probability of answering exactly 3 questions correctly. Determine the probability of answering at most 2 questions correctly. Determine the expected number of correct guesses (long run average of the correct guesses), and the variance of number of correct guesses.

Q: Horizontal lines indicate the duration of short-duration illness in 8 different people out of a…

A: Note: In case of multiple questions, answer to first question will be provided. Here Q3 has three…

Q: A chi-square test for independence is being used to evaluate the relationship between two variables.…

A: It is given that the degrees of freedom is 3.

Q: Highlight the differences and similarities of inductive and deductive reasoning using a Venn…

A: To highlight the differences and similarities of inductive and deductive reasoning.

Q: Which way of knowing benefits from evidence on the expertise of the source of information?…

A: Answer : We make sense of the world through eight ways of knowing: language reason sense perception…